Home / 82,262,438.40-123,393,657.60-31,146,124.80

Finding the Fourth Proportional to 82,262,438.40, 123,393,657.60 and 31,146,124.80

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Solution

The fourth proportional to 82,262,438.40, 123,393,657.60 and 31,146,124.80 is: 46,719,187.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,262,438.40 : 123,393,657.60 = 31,146,124.80 : x
  2. Step 2: Convert to fraction form
    82,262,438.40/123,393,657.60 = 31,146,124.80/x
  3. Step 3: Cross multiply
    82,262,438.40x = 123,393,657.60 × 31,146,124.80
  4. Step 4: Simplify right side
    82,262,438.40x = 3,843,234,259,138,068.50
  5. Step 5: Solve for x
    x = 3,843,234,259,138,068.50/82,262,438.40
  6. Step 6: Final answer
    x = 46,719,187.20

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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.