Home / 67,689,204.93-101,543,448.13-21,006,723.98

Finding the Fourth Proportional to 67,689,204.93, 101,543,448.13 and 21,006,723.98

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Solution

The fourth proportional to 67,689,204.93, 101,543,448.13 and 21,006,723.98 is: 31,513,077.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,689,204.93 : 101,543,448.13 = 21,006,723.98 : x
  2. Step 2: Convert to fraction form
    67,689,204.93/101,543,448.13 = 21,006,723.98/x
  3. Step 3: Cross multiply
    67,689,204.93x = 101,543,448.13 × 21,006,723.98
  4. Step 4: Simplify right side
    67,689,204.93x = 2,133,095,186,844,357
  5. Step 5: Solve for x
    x = 2,133,095,186,844,357/67,689,204.93
  6. Step 6: Final answer
    x = 31,513,077.88

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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.