Home / 168,042,347.40-252,063,521.10-155,128,331.10

Finding the Fourth Proportional to 168,042,347.40, 252,063,521.10 and 155,128,331.10

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Solution

The fourth proportional to 168,042,347.40, 252,063,521.10 and 155,128,331.10 is: 232,692,496.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,042,347.40 : 252,063,521.10 = 155,128,331.10 : x
  2. Step 2: Convert to fraction form
    168,042,347.40/252,063,521.10 = 155,128,331.10/x
  3. Step 3: Cross multiply
    168,042,347.40x = 252,063,521.10 × 155,128,331.10
  4. Step 4: Simplify right side
    168,042,347.40x = 39,102,193,359,432,632
  5. Step 5: Solve for x
    x = 39,102,193,359,432,632/168,042,347.40
  6. Step 6: Final answer
    x = 232,692,496.65

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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.