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Finding the Fourth Proportional to 408,252,179.70, 612,457,985.70 and 162,567,005.40

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Solution

The fourth proportional to 408,252,179.70, 612,457,985.70 and 162,567,005.40 is: 243,882,251.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,252,179.70 : 612,457,985.70 = 162,567,005.40 : x
  2. Step 2: Convert to fraction form
    408,252,179.70/612,457,985.70 = 162,567,005.40/x
  3. Step 3: Cross multiply
    408,252,179.70x = 612,457,985.70 × 162,567,005.40
  4. Step 4: Simplify right side
    408,252,179.70x = 99,565,460,668,565,040
  5. Step 5: Solve for x
    x = 99,565,460,668,565,040/408,252,179.70
  6. Step 6: Final answer
    x = 243,882,251.26

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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.