Home / 82,767,148.40-124,150,722.60-39,614,139.20

Finding the Fourth Proportional to 82,767,148.40, 124,150,722.60 and 39,614,139.20

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Solution

The fourth proportional to 82,767,148.40, 124,150,722.60 and 39,614,139.20 is: 59,421,208.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,767,148.40 : 124,150,722.60 = 39,614,139.20 : x
  2. Step 2: Convert to fraction form
    82,767,148.40/124,150,722.60 = 39,614,139.20/x
  3. Step 3: Cross multiply
    82,767,148.40x = 124,150,722.60 × 39,614,139.20
  4. Step 4: Simplify right side
    82,767,148.40x = 4,918,124,006,856,986
  5. Step 5: Solve for x
    x = 4,918,124,006,856,986/82,767,148.40
  6. Step 6: Final answer
    x = 59,421,208.80

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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.