Home / 121,105,017.96-181,737,758.34-66,555,697.56

Finding the Fourth Proportional to 121,105,017.96, 181,737,758.34 and 66,555,697.56

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Solution

The fourth proportional to 121,105,017.96, 181,737,758.34 and 66,555,697.56 is: 99,877,639.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,105,017.96 : 181,737,758.34 = 66,555,697.56 : x
  2. Step 2: Convert to fraction form
    121,105,017.96/181,737,758.34 = 66,555,697.56/x
  3. Step 3: Cross multiply
    121,105,017.96x = 181,737,758.34 × 66,555,697.56
  4. Step 4: Simplify right side
    121,105,017.96x = 12,095,683,279,309,408
  5. Step 5: Solve for x
    x = 12,095,683,279,309,408/121,105,017.96
  6. Step 6: Final answer
    x = 99,877,639.12

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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.