Home / 409,536,608.50-614,301,207.62-129,417,569.06

Finding the Fourth Proportional to 409,536,608.50, 614,301,207.62 and 129,417,569.06

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Solution

The fourth proportional to 409,536,608.50, 614,301,207.62 and 129,417,569.06 is: 194,125,182.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,536,608.50 : 614,301,207.62 = 129,417,569.06 : x
  2. Step 2: Convert to fraction form
    409,536,608.50/614,301,207.62 = 129,417,569.06/x
  3. Step 3: Cross multiply
    409,536,608.50x = 614,301,207.62 × 129,417,569.06
  4. Step 4: Simplify right side
    409,536,608.50x = 79,501,368,960,542,672
  5. Step 5: Solve for x
    x = 79,501,368,960,542,672/409,536,608.50
  6. Step 6: Final answer
    x = 194,125,182.73

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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.