Home / 86,747,276.60-130,120,914.90-47,780,185.40

Finding the Fourth Proportional to 86,747,276.60, 130,120,914.90 and 47,780,185.40

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Solution

The fourth proportional to 86,747,276.60, 130,120,914.90 and 47,780,185.40 is: 71,670,278.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,747,276.60 : 130,120,914.90 = 47,780,185.40 : x
  2. Step 2: Convert to fraction form
    86,747,276.60/130,120,914.90 = 47,780,185.40/x
  3. Step 3: Cross multiply
    86,747,276.60x = 130,120,914.90 × 47,780,185.40
  4. Step 4: Simplify right side
    86,747,276.60x = 6,217,201,438,339,623
  5. Step 5: Solve for x
    x = 6,217,201,438,339,623/86,747,276.60
  6. Step 6: Final answer
    x = 71,670,278.10

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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.