Home / 91,356,411.78-126,079,821.18-50,111,275.74

Finding the Fourth Proportional to 91,356,411.78, 126,079,821.18 and 50,111,275.74

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Solution

The fourth proportional to 91,356,411.78, 126,079,821.18 and 50,111,275.74 is: 69,157,933.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,356,411.78 : 126,079,821.18 = 50,111,275.74 : x
  2. Step 2: Convert to fraction form
    91,356,411.78/126,079,821.18 = 50,111,275.74/x
  3. Step 3: Cross multiply
    91,356,411.78x = 126,079,821.18 × 50,111,275.74
  4. Step 4: Simplify right side
    91,356,411.78x = 6,318,020,684,400,873
  5. Step 5: Solve for x
    x = 6,318,020,684,400,873/91,356,411.78
  6. Step 6: Final answer
    x = 69,157,933.87

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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.