Home / 145,224,806.52-200,417,338.32-81,665,149.53

Finding the Fourth Proportional to 145,224,806.52, 200,417,338.32 and 81,665,149.53

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Solution

The fourth proportional to 145,224,806.52, 200,417,338.32 and 81,665,149.53 is: 112,701,901.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,224,806.52 : 200,417,338.32 = 81,665,149.53 : x
  2. Step 2: Convert to fraction form
    145,224,806.52/200,417,338.32 = 81,665,149.53/x
  3. Step 3: Cross multiply
    145,224,806.52x = 200,417,338.32 × 81,665,149.53
  4. Step 4: Simplify right side
    145,224,806.52x = 16,367,111,902,307,398
  5. Step 5: Solve for x
    x = 16,367,111,902,307,398/145,224,806.52
  6. Step 6: Final answer
    x = 112,701,901.93

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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.