Home / 86,210,004.70-129,350,436.45-31,648,728.70

Finding the Fourth Proportional to 86,210,004.70, 129,350,436.45 and 31,648,728.70

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Solution

The fourth proportional to 86,210,004.70, 129,350,436.45 and 31,648,728.70 is: 47,486,099.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,210,004.70 : 129,350,436.45 = 31,648,728.70 : x
  2. Step 2: Convert to fraction form
    86,210,004.70/129,350,436.45 = 31,648,728.70/x
  3. Step 3: Cross multiply
    86,210,004.70x = 129,350,436.45 × 31,648,728.70
  4. Step 4: Simplify right side
    86,210,004.70x = 4,093,776,870,432,641
  5. Step 5: Solve for x
    x = 4,093,776,870,432,641/86,210,004.70
  6. Step 6: Final answer
    x = 47,486,099.61

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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.