Home / 86,747,269.60-130,120,904.40-47,780,178.40

Finding the Fourth Proportional to 86,747,269.60, 130,120,904.40 and 47,780,178.40

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Solution

The fourth proportional to 86,747,269.60, 130,120,904.40 and 47,780,178.40 is: 71,670,267.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747,269.60 : 130,120,904.40 = 47,780,178.40 : x
  2. Step 2: Convert to fraction form
    86,747,269.60/130,120,904.40 = 47,780,178.40/x
  3. Step 3: Cross multiply
    86,747,269.60x = 130,120,904.40 × 47,780,178.40
  4. Step 4: Simplify right side
    86,747,269.60x = 6,217,200,025,801,345
  5. Step 5: Solve for x
    x = 6,217,200,025,801,345/86,747,269.60
  6. Step 6: Final answer
    x = 71,670,267.60

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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.