Home / 145,538,279.40-200,841,785.75-79,458,775.61

Finding the Fourth Proportional to 145,538,279.40, 200,841,785.75 and 79,458,775.61

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Solution

The fourth proportional to 145,538,279.40, 200,841,785.75 and 79,458,775.61 is: 109,652,542.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,538,279.40 : 200,841,785.75 = 79,458,775.61 : x
  2. Step 2: Convert to fraction form
    145,538,279.40/200,841,785.75 = 79,458,775.61/x
  3. Step 3: Cross multiply
    145,538,279.40x = 200,841,785.75 × 79,458,775.61
  4. Step 4: Simplify right side
    145,538,279.40x = 15,958,642,387,721,696
  5. Step 5: Solve for x
    x = 15,958,642,387,721,696/145,538,279.40
  6. Step 6: Final answer
    x = 109,652,542.64

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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.