Home / 253,348,149.12-380,079,526.54-136,761,002.70

Finding the Fourth Proportional to 253,348,149.12, 380,079,526.54 and 136,761,002.70

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Solution

The fourth proportional to 253,348,149.12, 380,079,526.54 and 136,761,002.70 is: 205,172,436.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,348,149.12 : 380,079,526.54 = 136,761,002.70 : x
  2. Step 2: Convert to fraction form
    253,348,149.12/380,079,526.54 = 136,761,002.70/x
  3. Step 3: Cross multiply
    253,348,149.12x = 380,079,526.54 × 136,761,002.70
  4. Step 4: Simplify right side
    253,348,149.12x = 51,980,057,155,351,664
  5. Step 5: Solve for x
    x = 51,980,057,155,351,664/253,348,149.12
  6. Step 6: Final answer
    x = 205,172,436.96

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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.