Home / 131,680,201.17-181,718,613.89-78,756,907.57

Finding the Fourth Proportional to 131,680,201.17, 181,718,613.89 and 78,756,907.57

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Solution

The fourth proportional to 131,680,201.17, 181,718,613.89 and 78,756,907.57 is: 108,684,494.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,680,201.17 : 181,718,613.89 = 78,756,907.57 : x
  2. Step 2: Convert to fraction form
    131,680,201.17/181,718,613.89 = 78,756,907.57/x
  3. Step 3: Cross multiply
    131,680,201.17x = 181,718,613.89 × 78,756,907.57
  4. Step 4: Simplify right side
    131,680,201.17x = 14,311,596,077,883,246
  5. Step 5: Solve for x
    x = 14,311,596,077,883,246/131,680,201.17
  6. Step 6: Final answer
    x = 108,684,494.33

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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.