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Finding the Fourth Proportional to 386,152,001.90, 579,228,002.85 and 386,152,001.90

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Solution

The fourth proportional to 386,152,001.90, 579,228,002.85 and 386,152,001.90 is: 579,228,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,152,001.90 : 579,228,002.85 = 386,152,001.90 : x
  2. Step 2: Convert to fraction form
    386,152,001.90/579,228,002.85 = 386,152,001.90/x
  3. Step 3: Cross multiply
    386,152,001.90x = 579,228,002.85 × 386,152,001.90
  4. Step 4: Simplify right side
    386,152,001.90x = 223,670,052,857,066,400
  5. Step 5: Solve for x
    x = 223,670,052,857,066,400/386,152,001.90
  6. Step 6: Final answer
    x = 579,228,002.85

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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.