Home / 78,349,426.60-117,524,139.90-47,693,324.20

Finding the Fourth Proportional to 78,349,426.60, 117,524,139.90 and 47,693,324.20

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Solution

The fourth proportional to 78,349,426.60, 117,524,139.90 and 47,693,324.20 is: 71,539,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,349,426.60 : 117,524,139.90 = 47,693,324.20 : x
  2. Step 2: Convert to fraction form
    78,349,426.60/117,524,139.90 = 47,693,324.20/x
  3. Step 3: Cross multiply
    78,349,426.60x = 117,524,139.90 × 47,693,324.20
  4. Step 4: Simplify right side
    78,349,426.60x = 5,605,116,905,576,856
  5. Step 5: Solve for x
    x = 5,605,116,905,576,856/78,349,426.60
  6. Step 6: Final answer
    x = 71,539,986.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.