Home / 1,092,125,217.20-1,638,187,825.80-631,826,452.40

Finding the Fourth Proportional to 1,092,125,217.20, 1,638,187,825.80 and 631,826,452.40

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Solution

The fourth proportional to 1,092,125,217.20, 1,638,187,825.80 and 631,826,452.40 is: 947,739,678.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,092,125,217.20 : 1,638,187,825.80 = 631,826,452.40 : x
  2. Step 2: Convert to fraction form
    1,092,125,217.20/1,638,187,825.80 = 631,826,452.40/x
  3. Step 3: Cross multiply
    1,092,125,217.20x = 1,638,187,825.80 × 631,826,452.40
  4. Step 4: Simplify right side
    1,092,125,217.20x = 1,035,050,402,340,083,072
  5. Step 5: Solve for x
    x = 1,035,050,402,340,083,072/1,092,125,217.20
  6. Step 6: Final answer
    x = 947,739,678.60

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Double scale
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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.