Home / 831,250,363.12-1,147,124,752.42-469,220,545.38

Finding the Fourth Proportional to 831,250,363.12, 1,147,124,752.42 and 469,220,545.38

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Solution

The fourth proportional to 831,250,363.12, 1,147,124,752.42 and 469,220,545.38 is: 647,523,930.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,250,363.12 : 1,147,124,752.42 = 469,220,545.38 : x
  2. Step 2: Convert to fraction form
    831,250,363.12/1,147,124,752.42 = 469,220,545.38/x
  3. Step 3: Cross multiply
    831,250,363.12x = 1,147,124,752.42 × 469,220,545.38
  4. Step 4: Simplify right side
    831,250,363.12x = 538,254,501,949,409,920
  5. Step 5: Solve for x
    x = 538,254,501,949,409,920/831,250,363.12
  6. Step 6: Final answer
    x = 647,523,930.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.