Home / 885,509,386.40-1,326,472,489.20-613,187,645.60

Finding the Fourth Proportional to 885,509,386.40, 1,326,472,489.20 and 613,187,645.60

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Solution

The fourth proportional to 885,509,386.40, 1,326,472,489.20 and 613,187,645.60 is: 918,540,847.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,509,386.40 : 1,326,472,489.20 = 613,187,645.60 : x
  2. Step 2: Convert to fraction form
    885,509,386.40/1,326,472,489.20 = 613,187,645.60/x
  3. Step 3: Cross multiply
    885,509,386.40x = 1,326,472,489.20 × 613,187,645.60
  4. Step 4: Simplify right side
    885,509,386.40x = 813,376,542,605,719,552
  5. Step 5: Solve for x
    x = 813,376,542,605,719,552/885,509,386.40
  6. Step 6: Final answer
    x = 918,540,847.90

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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.