Home / 86,285,464.80-129,260,235.60-52,105,279.20

Finding the Fourth Proportional to 86,285,464.80, 129,260,235.60 and 52,105,279.20

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Solution

The fourth proportional to 86,285,464.80, 129,260,235.60 and 52,105,279.20 is: 78,056,491.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,285,464.80 : 129,260,235.60 = 52,105,279.20 : x
  2. Step 2: Convert to fraction form
    86,285,464.80/129,260,235.60 = 52,105,279.20/x
  3. Step 3: Cross multiply
    86,285,464.80x = 129,260,235.60 × 52,105,279.20
  4. Step 4: Simplify right side
    86,285,464.80x = 6,735,140,665,395,780
  5. Step 5: Solve for x
    x = 6,735,140,665,395,780/86,285,464.80
  6. Step 6: Final answer
    x = 78,056,491.68

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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.