Home / 86,011,212.80-129,016,819.20-25,426,938.80

Finding the Fourth Proportional to 86,011,212.80, 129,016,819.20 and 25,426,938.80

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Solution

The fourth proportional to 86,011,212.80, 129,016,819.20 and 25,426,938.80 is: 38,140,408.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,011,212.80 : 129,016,819.20 = 25,426,938.80 : x
  2. Step 2: Convert to fraction form
    86,011,212.80/129,016,819.20 = 25,426,938.80/x
  3. Step 3: Cross multiply
    86,011,212.80x = 129,016,819.20 × 25,426,938.80
  4. Step 4: Simplify right side
    86,011,212.80x = 3,280,502,765,969,065
  5. Step 5: Solve for x
    x = 3,280,502,765,969,065/86,011,212.80
  6. Step 6: Final answer
    x = 38,140,408.20

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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.