Home / 139,070,793.60-208,523,246.40-85,256,726.40

Finding the Fourth Proportional to 139,070,793.60, 208,523,246.40 and 85,256,726.40

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Solution

The fourth proportional to 139,070,793.60, 208,523,246.40 and 85,256,726.40 is: 127,834,241.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,070,793.60 : 208,523,246.40 = 85,256,726.40 : x
  2. Step 2: Convert to fraction form
    139,070,793.60/208,523,246.40 = 85,256,726.40/x
  3. Step 3: Cross multiply
    139,070,793.60x = 208,523,246.40 × 85,256,726.40
  4. Step 4: Simplify right side
    139,070,793.60x = 17,778,009,366,364,586
  5. Step 5: Solve for x
    x = 17,778,009,366,364,586/139,070,793.60
  6. Step 6: Final answer
    x = 127,834,241.15

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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.