Home / 78,496,301.80-117,576,491.10-69,986,247.40

Finding the Fourth Proportional to 78,496,301.80, 117,576,491.10 and 69,986,247.40

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Solution

The fourth proportional to 78,496,301.80, 117,576,491.10 and 69,986,247.40 is: 104,829,618.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,496,301.80 : 117,576,491.10 = 69,986,247.40 : x
  2. Step 2: Convert to fraction form
    78,496,301.80/117,576,491.10 = 69,986,247.40/x
  3. Step 3: Cross multiply
    78,496,301.80x = 117,576,491.10 × 69,986,247.40
  4. Step 4: Simplify right side
    78,496,301.80x = 8,228,737,394,548,498
  5. Step 5: Solve for x
    x = 8,228,737,394,548,498/78,496,301.80
  6. Step 6: Final answer
    x = 104,829,618.80

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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.