Home / 101,502,731.28-140,070,018.37-55,091,988.75

Finding the Fourth Proportional to 101,502,731.28, 140,070,018.37 and 55,091,988.75

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Solution

The fourth proportional to 101,502,731.28, 140,070,018.37 and 55,091,988.75 is: 76,024,908.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,502,731.28 : 140,070,018.37 = 55,091,988.75 : x
  2. Step 2: Convert to fraction form
    101,502,731.28/140,070,018.37 = 55,091,988.75/x
  3. Step 3: Cross multiply
    101,502,731.28x = 140,070,018.37 × 55,091,988.75
  4. Step 4: Simplify right side
    101,502,731.28x = 7,716,735,876,252,334
  5. Step 5: Solve for x
    x = 7,716,735,876,252,334/101,502,731.28
  6. Step 6: Final answer
    x = 76,024,908.68

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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.