Home / 8,312,870.50-11,479,683.68-7,859,989.17

Finding the Fourth Proportional to 8,312,870.50, 11,479,683.68 and 7,859,989.17

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Solution

The fourth proportional to 8,312,870.50, 11,479,683.68 and 7,859,989.17 is: 10,854,275.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312,870.50 : 11,479,683.68 = 7,859,989.17 : x
  2. Step 2: Convert to fraction form
    8,312,870.50/11,479,683.68 = 7,859,989.17/x
  3. Step 3: Cross multiply
    8,312,870.50x = 11,479,683.68 × 7,859,989.17
  4. Step 4: Simplify right side
    8,312,870.50x = 90,230,189,399,825.75
  5. Step 5: Solve for x
    x = 90,230,189,399,825.75/8,312,870.50
  6. Step 6: Final answer
    x = 10,854,275.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.