Home / 85,248,250.60-127,788,395.10-42,124,109.80

Finding the Fourth Proportional to 85,248,250.60, 127,788,395.10 and 42,124,109.80

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Solution

The fourth proportional to 85,248,250.60, 127,788,395.10 and 42,124,109.80 is: 63,144,666.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,248,250.60 : 127,788,395.10 = 42,124,109.80 : x
  2. Step 2: Convert to fraction form
    85,248,250.60/127,788,395.10 = 42,124,109.80/x
  3. Step 3: Cross multiply
    85,248,250.60x = 127,788,395.10 × 42,124,109.80
  4. Step 4: Simplify right side
    85,248,250.60x = 5,382,972,386,358,181
  5. Step 5: Solve for x
    x = 5,382,972,386,358,181/85,248,250.60
  6. Step 6: Final answer
    x = 63,144,666.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.