Home / 100,543,510.24-138,811,946.22-79,719,658.96

Finding the Fourth Proportional to 100,543,510.24, 138,811,946.22 and 79,719,658.96

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Solution

The fourth proportional to 100,543,510.24, 138,811,946.22 and 79,719,658.96 is: 110,062,210.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,543,510.24 : 138,811,946.22 = 79,719,658.96 : x
  2. Step 2: Convert to fraction form
    100,543,510.24/138,811,946.22 = 79,719,658.96/x
  3. Step 3: Cross multiply
    100,543,510.24x = 138,811,946.22 × 79,719,658.96
  4. Step 4: Simplify right side
    100,543,510.24x = 11,066,041,011,837,374
  5. Step 5: Solve for x
    x = 11,066,041,011,837,374/100,543,510.24
  6. Step 6: Final answer
    x = 110,062,210.73

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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.