Home / 99,681,718.70-149,522,578.05-86,244,790.70

Finding the Fourth Proportional to 99,681,718.70, 149,522,578.05 and 86,244,790.70

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Solution

The fourth proportional to 99,681,718.70, 149,522,578.05 and 86,244,790.70 is: 129,367,186.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,681,718.70 : 149,522,578.05 = 86,244,790.70 : x
  2. Step 2: Convert to fraction form
    99,681,718.70/149,522,578.05 = 86,244,790.70/x
  3. Step 3: Cross multiply
    99,681,718.70x = 149,522,578.05 × 86,244,790.70
  4. Step 4: Simplify right side
    99,681,718.70x = 12,895,543,448,846,666
  5. Step 5: Solve for x
    x = 12,895,543,448,846,666/99,681,718.70
  6. Step 6: Final answer
    x = 129,367,186.05

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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.