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Finding the Fourth Proportional to 398,581,569.45, 597,872,354.18 and 398,581,569.45

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Solution

The fourth proportional to 398,581,569.45, 597,872,354.18 and 398,581,569.45 is: 597,872,354.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,581,569.45 : 597,872,354.18 = 398,581,569.45 : x
  2. Step 2: Convert to fraction form
    398,581,569.45/597,872,354.18 = 398,581,569.45/x
  3. Step 3: Cross multiply
    398,581,569.45x = 597,872,354.18 × 398,581,569.45
  4. Step 4: Simplify right side
    398,581,569.45x = 238,300,901,257,837,728
  5. Step 5: Solve for x
    x = 238,300,901,257,837,728/398,581,569.45
  6. Step 6: Final answer
    x = 597,872,354.18

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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.