Home / 86,210,006.20-129,350,438.70-31,648,730.20

Finding the Fourth Proportional to 86,210,006.20, 129,350,438.70 and 31,648,730.20

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Solution

The fourth proportional to 86,210,006.20, 129,350,438.70 and 31,648,730.20 is: 47,486,101.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,210,006.20 : 129,350,438.70 = 31,648,730.20 : x
  2. Step 2: Convert to fraction form
    86,210,006.20/129,350,438.70 = 31,648,730.20/x
  3. Step 3: Cross multiply
    86,210,006.20x = 129,350,438.70 × 31,648,730.20
  4. Step 4: Simplify right side
    86,210,006.20x = 4,093,777,135,667,938.50
  5. Step 5: Solve for x
    x = 4,093,777,135,667,938.50/86,210,006.20
  6. Step 6: Final answer
    x = 47,486,101.86

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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.