Home / 82,811,087.40-124,216,631.10-28,285,240.80

Finding the Fourth Proportional to 82,811,087.40, 124,216,631.10 and 28,285,240.80

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Solution

The fourth proportional to 82,811,087.40, 124,216,631.10 and 28,285,240.80 is: 42,427,861.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,811,087.40 : 124,216,631.10 = 28,285,240.80 : x
  2. Step 2: Convert to fraction form
    82,811,087.40/124,216,631.10 = 28,285,240.80/x
  3. Step 3: Cross multiply
    82,811,087.40x = 124,216,631.10 × 28,285,240.80
  4. Step 4: Simplify right side
    82,811,087.40x = 3,513,497,322,028,269
  5. Step 5: Solve for x
    x = 3,513,497,322,028,269/82,811,087.40
  6. Step 6: Final answer
    x = 42,427,861.20

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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.