Home / 811,999,331.15-1,120,559,906.30-440,721,439.07

Finding the Fourth Proportional to 811,999,331.15, 1,120,559,906.30 and 440,721,439.07

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Solution

The fourth proportional to 811,999,331.15, 1,120,559,906.30 and 440,721,439.07 is: 608,196,036.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,999,331.15 : 1,120,559,906.30 = 440,721,439.07 : x
  2. Step 2: Convert to fraction form
    811,999,331.15/1,120,559,906.30 = 440,721,439.07/x
  3. Step 3: Cross multiply
    811,999,331.15x = 1,120,559,906.30 × 440,721,439.07
  4. Step 4: Simplify right side
    811,999,331.15x = 493,854,774,468,680,320
  5. Step 5: Solve for x
    x = 493,854,774,468,680,320/811,999,331.15
  6. Step 6: Final answer
    x = 608,196,036.04

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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.