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Finding the Fourth Proportional to 172,389,615.40, 258,584,423.10 and 172,389,615.40

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Solution

The fourth proportional to 172,389,615.40, 258,584,423.10 and 172,389,615.40 is: 258,584,423.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,389,615.40 : 258,584,423.10 = 172,389,615.40 : x
  2. Step 2: Convert to fraction form
    172,389,615.40/258,584,423.10 = 172,389,615.40/x
  3. Step 3: Cross multiply
    172,389,615.40x = 258,584,423.10 × 172,389,615.40
  4. Step 4: Simplify right side
    172,389,615.40x = 44,577,269,246,639,880
  5. Step 5: Solve for x
    x = 44,577,269,246,639,880/172,389,615.40
  6. Step 6: Final answer
    x = 258,584,423.10

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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.