Home / 78,174,198.48-107,893,326.38-43,378,099.01

Finding the Fourth Proportional to 78,174,198.48, 107,893,326.38 and 43,378,099.01

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Solution

The fourth proportional to 78,174,198.48, 107,893,326.38 and 43,378,099.01 is: 59,868,952.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,174,198.48 : 107,893,326.38 = 43,378,099.01 : x
  2. Step 2: Convert to fraction form
    78,174,198.48/107,893,326.38 = 43,378,099.01/x
  3. Step 3: Cross multiply
    78,174,198.48x = 107,893,326.38 × 43,378,099.01
  4. Step 4: Simplify right side
    78,174,198.48x = 4,680,207,393,473,528
  5. Step 5: Solve for x
    x = 4,680,207,393,473,528/78,174,198.48
  6. Step 6: Final answer
    x = 59,868,952.73

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1.5x scale

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.