Home / 13,553,909.40-20,312,201.70-8,991,989.40

Finding the Fourth Proportional to 13,553,909.40, 20,312,201.70 and 8,991,989.40

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Solution

The fourth proportional to 13,553,909.40, 20,312,201.70 and 8,991,989.40 is: 13,475,603.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,553,909.40 : 20,312,201.70 = 8,991,989.40 : x
  2. Step 2: Convert to fraction form
    13,553,909.40/20,312,201.70 = 8,991,989.40/x
  3. Step 3: Cross multiply
    13,553,909.40x = 20,312,201.70 × 8,991,989.40
  4. Step 4: Simplify right side
    13,553,909.40x = 182,647,102,377,061.97
  5. Step 5: Solve for x
    x = 182,647,102,377,061.97/13,553,909.40
  6. Step 6: Final answer
    x = 13,475,603.02

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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.