Home / 1,026,432,001.90-1,539,648,002.85-638,692,648.30

Finding the Fourth Proportional to 1,026,432,001.90, 1,539,648,002.85 and 638,692,648.30

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Solution

The fourth proportional to 1,026,432,001.90, 1,539,648,002.85 and 638,692,648.30 is: 958,038,972.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026,432,001.90 : 1,539,648,002.85 = 638,692,648.30 : x
  2. Step 2: Convert to fraction form
    1,026,432,001.90/1,539,648,002.85 = 638,692,648.30/x
  3. Step 3: Cross multiply
    1,026,432,001.90x = 1,539,648,002.85 × 638,692,648.30
  4. Step 4: Simplify right side
    1,026,432,001.90x = 983,361,860,390,072,320
  5. Step 5: Solve for x
    x = 983,361,860,390,072,320/1,026,432,001.90
  6. Step 6: Final answer
    x = 958,038,972.45

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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.