Home / 139,049,909.40-208,573,827.30-42,005,429.40

Finding the Fourth Proportional to 139,049,909.40, 208,573,827.30 and 42,005,429.40

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Solution

The fourth proportional to 139,049,909.40, 208,573,827.30 and 42,005,429.40 is: 63,007,830.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,049,909.40 : 208,573,827.30 = 42,005,429.40 : x
  2. Step 2: Convert to fraction form
    139,049,909.40/208,573,827.30 = 42,005,429.40/x
  3. Step 3: Cross multiply
    139,049,909.40x = 208,573,827.30 × 42,005,429.40
  4. Step 4: Simplify right side
    139,049,909.40x = 8,761,233,177,337,943
  5. Step 5: Solve for x
    x = 8,761,233,177,337,943/139,049,909.40
  6. Step 6: Final answer
    x = 63,007,830.89

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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.