Home / 8,554,503.80-12,831,755.70-7,987,633.40

Finding the Fourth Proportional to 8,554,503.80, 12,831,755.70 and 7,987,633.40

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Solution

The fourth proportional to 8,554,503.80, 12,831,755.70 and 7,987,633.40 is: 11,981,450.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,554,503.80 : 12,831,755.70 = 7,987,633.40 : x
  2. Step 2: Convert to fraction form
    8,554,503.80/12,831,755.70 = 7,987,633.40/x
  3. Step 3: Cross multiply
    8,554,503.80x = 12,831,755.70 × 7,987,633.40
  4. Step 4: Simplify right side
    8,554,503.80x = 102,495,360,409,960.38
  5. Step 5: Solve for x
    x = 102,495,360,409,960.38/8,554,503.80
  6. Step 6: Final answer
    x = 11,981,450.10

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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.