Home / 89,878,070.94-123,555,612.36-77,272,686.96

Finding the Fourth Proportional to 89,878,070.94, 123,555,612.36 and 77,272,686.96

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Solution

The fourth proportional to 89,878,070.94, 123,555,612.36 and 77,272,686.96 is: 106,226,958.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,878,070.94 : 123,555,612.36 = 77,272,686.96 : x
  2. Step 2: Convert to fraction form
    89,878,070.94/123,555,612.36 = 77,272,686.96/x
  3. Step 3: Cross multiply
    89,878,070.94x = 123,555,612.36 × 77,272,686.96
  4. Step 4: Simplify right side
    89,878,070.94x = 9,547,474,156,045,386
  5. Step 5: Solve for x
    x = 9,547,474,156,045,386/89,878,070.94
  6. Step 6: Final answer
    x = 106,226,958.99

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.