Home / 215,448,861.92-323,218,686.83-69,871,071.98

Finding the Fourth Proportional to 215,448,861.92, 323,218,686.83 and 69,871,071.98

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Solution

The fourth proportional to 215,448,861.92, 323,218,686.83 and 69,871,071.98 is: 104,821,329.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,448,861.92 : 323,218,686.83 = 69,871,071.98 : x
  2. Step 2: Convert to fraction form
    215,448,861.92/323,218,686.83 = 69,871,071.98/x
  3. Step 3: Cross multiply
    215,448,861.92x = 323,218,686.83 × 69,871,071.98
  4. Step 4: Simplify right side
    215,448,861.92x = 22,583,636,132,011,008
  5. Step 5: Solve for x
    x = 22,583,636,132,011,008/215,448,861.92
  6. Step 6: Final answer
    x = 104,821,329.44

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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.