Home / 74,635,168.70-112,002,519.45-42,287,008.70

Finding the Fourth Proportional to 74,635,168.70, 112,002,519.45 and 42,287,008.70

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Solution

The fourth proportional to 74,635,168.70, 112,002,519.45 and 42,287,008.70 is: 63,458,709.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,635,168.70 : 112,002,519.45 = 42,287,008.70 : x
  2. Step 2: Convert to fraction form
    74,635,168.70/112,002,519.45 = 42,287,008.70/x
  3. Step 3: Cross multiply
    74,635,168.70x = 112,002,519.45 × 42,287,008.70
  4. Step 4: Simplify right side
    74,635,168.70x = 4,736,251,514,404,070
  5. Step 5: Solve for x
    x = 4,736,251,514,404,070/74,635,168.70
  6. Step 6: Final answer
    x = 63,458,709.84

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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.