Home / 129,722,892.89-179,017,586.51-70,985,562.86

Finding the Fourth Proportional to 129,722,892.89, 179,017,586.51 and 70,985,562.86

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Solution

The fourth proportional to 129,722,892.89, 179,017,586.51 and 70,985,562.86 is: 97,960,073.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,722,892.89 : 179,017,586.51 = 70,985,562.86 : x
  2. Step 2: Convert to fraction form
    129,722,892.89/179,017,586.51 = 70,985,562.86/x
  3. Step 3: Cross multiply
    129,722,892.89x = 179,017,586.51 × 70,985,562.86
  4. Step 4: Simplify right side
    129,722,892.89x = 12,707,664,139,001,078
  5. Step 5: Solve for x
    x = 12,707,664,139,001,078/129,722,892.89
  6. Step 6: Final answer
    x = 97,960,073.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.