Home / 78,079,642.53-116,421,411.08-75,934,452.92

Finding the Fourth Proportional to 78,079,642.53, 116,421,411.08 and 75,934,452.92

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Solution

The fourth proportional to 78,079,642.53, 116,421,411.08 and 75,934,452.92 is: 113,222,805.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079,642.53 : 116,421,411.08 = 75,934,452.92 : x
  2. Step 2: Convert to fraction form
    78,079,642.53/116,421,411.08 = 75,934,452.92/x
  3. Step 3: Cross multiply
    78,079,642.53x = 116,421,411.08 × 75,934,452.92
  4. Step 4: Simplify right side
    78,079,642.53x = 8,840,396,158,445,608
  5. Step 5: Solve for x
    x = 8,840,396,158,445,608/78,079,642.53
  6. Step 6: Final answer
    x = 113,222,805.23

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.