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Finding the Fourth Proportional to 302,429,269.80, 453,643,904.70 and 87,018,517.80

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Solution

The fourth proportional to 302,429,269.80, 453,643,904.70 and 87,018,517.80 is: 130,527,776.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,429,269.80 : 453,643,904.70 = 87,018,517.80 : x
  2. Step 2: Convert to fraction form
    302,429,269.80/453,643,904.70 = 87,018,517.80/x
  3. Step 3: Cross multiply
    302,429,269.80x = 453,643,904.70 × 87,018,517.80
  4. Step 4: Simplify right side
    302,429,269.80x = 39,475,420,195,998,448
  5. Step 5: Solve for x
    x = 39,475,420,195,998,448/302,429,269.80
  6. Step 6: Final answer
    x = 130,527,776.70

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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.