Home / 78,079,650.78-116,421,423.36-75,934,461.18

Finding the Fourth Proportional to 78,079,650.78, 116,421,423.36 and 75,934,461.18

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Solution

The fourth proportional to 78,079,650.78, 116,421,423.36 and 75,934,461.18 is: 113,222,817.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,079,650.78 : 116,421,423.36 = 75,934,461.18 : x
  2. Step 2: Convert to fraction form
    78,079,650.78/116,421,423.36 = 75,934,461.18/x
  3. Step 3: Cross multiply
    78,079,650.78x = 116,421,423.36 × 75,934,461.18
  4. Step 4: Simplify right side
    78,079,650.78x = 8,840,398,052,650,266
  5. Step 5: Solve for x
    x = 8,840,398,052,650,266/78,079,650.78
  6. Step 6: Final answer
    x = 113,222,817.52

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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.