Home / 74,887,729.80-112,331,594.70-42,527,128.20

Finding the Fourth Proportional to 74,887,729.80, 112,331,594.70 and 42,527,128.20

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Solution

The fourth proportional to 74,887,729.80, 112,331,594.70 and 42,527,128.20 is: 63,790,692.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,887,729.80 : 112,331,594.70 = 42,527,128.20 : x
  2. Step 2: Convert to fraction form
    74,887,729.80/112,331,594.70 = 42,527,128.20/x
  3. Step 3: Cross multiply
    74,887,729.80x = 112,331,594.70 × 42,527,128.20
  4. Step 4: Simplify right side
    74,887,729.80x = 4,777,140,128,717,341
  5. Step 5: Solve for x
    x = 4,777,140,128,717,341/74,887,729.80
  6. Step 6: Final answer
    x = 63,790,692.30

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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.