Home / 123,761,071.16-170,780,279.80-71,553,471.28

Finding the Fourth Proportional to 123,761,071.16, 170,780,279.80 and 71,553,471.28

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Solution

The fourth proportional to 123,761,071.16, 170,780,279.80 and 71,553,471.28 is: 98,738,009.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,761,071.16 : 170,780,279.80 = 71,553,471.28 : x
  2. Step 2: Convert to fraction form
    123,761,071.16/170,780,279.80 = 71,553,471.28/x
  3. Step 3: Cross multiply
    123,761,071.16x = 170,780,279.80 × 71,553,471.28
  4. Step 4: Simplify right side
    123,761,071.16x = 12,219,921,845,859,666
  5. Step 5: Solve for x
    x = 12,219,921,845,859,666/123,761,071.16
  6. Step 6: Final answer
    x = 98,738,009.71

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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.