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Finding the Fourth Proportional to 297,287,816.80, 445,931,725.20 and 297,287,816.80

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Solution

The fourth proportional to 297,287,816.80, 445,931,725.20 and 297,287,816.80 is: 445,931,725.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,287,816.80 : 445,931,725.20 = 297,287,816.80 : x
  2. Step 2: Convert to fraction form
    297,287,816.80/445,931,725.20 = 297,287,816.80/x
  3. Step 3: Cross multiply
    297,287,816.80x = 445,931,725.20 × 297,287,816.80
  4. Step 4: Simplify right side
    297,287,816.80x = 132,570,069,026,565,552
  5. Step 5: Solve for x
    x = 132,570,069,026,565,552/297,287,816.80
  6. Step 6: Final answer
    x = 445,931,725.20

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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.