Home / 78,338,082.06-108,116,494.47-47,398,505.58

Finding the Fourth Proportional to 78,338,082.06, 108,116,494.47 and 47,398,505.58

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Solution

The fourth proportional to 78,338,082.06, 108,116,494.47 and 47,398,505.58 is: 65,415,952.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,338,082.06 : 108,116,494.47 = 47,398,505.58 : x
  2. Step 2: Convert to fraction form
    78,338,082.06/108,116,494.47 = 47,398,505.58/x
  3. Step 3: Cross multiply
    78,338,082.06x = 108,116,494.47 × 47,398,505.58
  4. Step 4: Simplify right side
    78,338,082.06x = 5,124,560,266,426,334
  5. Step 5: Solve for x
    x = 5,124,560,266,426,334/78,338,082.06
  6. Step 6: Final answer
    x = 65,415,952.65

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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.