Home / 811,999,331.27-1,120,559,906.47-440,721,439.19

Finding the Fourth Proportional to 811,999,331.27, 1,120,559,906.47 and 440,721,439.19

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Solution

The fourth proportional to 811,999,331.27, 1,120,559,906.47 and 440,721,439.19 is: 608,196,036.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    811,999,331.27 : 1,120,559,906.47 = 440,721,439.19 : x
  2. Step 2: Convert to fraction form
    811,999,331.27/1,120,559,906.47 = 440,721,439.19/x
  3. Step 3: Cross multiply
    811,999,331.27x = 1,120,559,906.47 × 440,721,439.19
  4. Step 4: Simplify right side
    811,999,331.27x = 493,854,774,682,702,528
  5. Step 5: Solve for x
    x = 493,854,774,682,702,528/811,999,331.27
  6. Step 6: Final answer
    x = 608,196,036.21

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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.