Home / 885,188,155.92-1,221,666,772.28-503,802,919.13

Finding the Fourth Proportional to 885,188,155.92, 1,221,666,772.28 and 503,802,919.13

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Solution

The fourth proportional to 885,188,155.92, 1,221,666,772.28 and 503,802,919.13 is: 695,308,993.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,188,155.92 : 1,221,666,772.28 = 503,802,919.13 : x
  2. Step 2: Convert to fraction form
    885,188,155.92/1,221,666,772.28 = 503,802,919.13/x
  3. Step 3: Cross multiply
    885,188,155.92x = 1,221,666,772.28 × 503,802,919.13
  4. Step 4: Simplify right side
    885,188,155.92x = 615,479,286,070,161,664
  5. Step 5: Solve for x
    x = 615,479,286,070,161,664/885,188,155.92
  6. Step 6: Final answer
    x = 695,308,993.86

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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.