Home / 89,820,916.11-123,922,418.54-73,272,433.86

Finding the Fourth Proportional to 89,820,916.11, 123,922,418.54 and 73,272,433.86

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Solution

The fourth proportional to 89,820,916.11, 123,922,418.54 and 73,272,433.86 is: 101,091,122.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,820,916.11 : 123,922,418.54 = 73,272,433.86 : x
  2. Step 2: Convert to fraction form
    89,820,916.11/123,922,418.54 = 73,272,433.86/x
  3. Step 3: Cross multiply
    89,820,916.11x = 123,922,418.54 × 73,272,433.86
  4. Step 4: Simplify right side
    89,820,916.11x = 9,080,097,215,877,026
  5. Step 5: Solve for x
    x = 9,080,097,215,877,026/89,820,916.11
  6. Step 6: Final answer
    x = 101,091,122.30

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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.