Home / 1,026,432,003.30-1,539,648,004.95-618,285,315.30

Finding the Fourth Proportional to 1,026,432,003.30, 1,539,648,004.95 and 618,285,315.30

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Solution

The fourth proportional to 1,026,432,003.30, 1,539,648,004.95 and 618,285,315.30 is: 927,427,972.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,432,003.30 : 1,539,648,004.95 = 618,285,315.30 : x
  2. Step 2: Convert to fraction form
    1,026,432,003.30/1,539,648,004.95 = 618,285,315.30/x
  3. Step 3: Cross multiply
    1,026,432,003.30x = 1,539,648,004.95 × 618,285,315.30
  4. Step 4: Simplify right side
    1,026,432,003.30x = 951,941,752,191,526,656
  5. Step 5: Solve for x
    x = 951,941,752,191,526,656/1,026,432,003.30
  6. Step 6: Final answer
    x = 927,427,972.95

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Half scale
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Double scale
Find fourth proportional to 1,026,432,004.30, 1,539,648,006.45 and 618,285,316.30
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.