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Finding the Fourth Proportional to 442,545,007.80, 663,817,511.70 and 442,545,007.80

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Solution

The fourth proportional to 442,545,007.80, 663,817,511.70 and 442,545,007.80 is: 663,817,511.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,545,007.80 : 663,817,511.70 = 442,545,007.80 : x
  2. Step 2: Convert to fraction form
    442,545,007.80/663,817,511.70 = 442,545,007.80/x
  3. Step 3: Cross multiply
    442,545,007.80x = 663,817,511.70 × 442,545,007.80
  4. Step 4: Simplify right side
    442,545,007.80x = 293,769,125,893,053,120
  5. Step 5: Solve for x
    x = 293,769,125,893,053,120/442,545,007.80
  6. Step 6: Final answer
    x = 663,817,511.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.