Home / 13,436,737.20-20,155,105.80-7,369,124.40

Finding the Fourth Proportional to 13,436,737.20, 20,155,105.80 and 7,369,124.40

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Solution

The fourth proportional to 13,436,737.20, 20,155,105.80 and 7,369,124.40 is: 11,053,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,436,737.20 : 20,155,105.80 = 7,369,124.40 : x
  2. Step 2: Convert to fraction form
    13,436,737.20/20,155,105.80 = 7,369,124.40/x
  3. Step 3: Cross multiply
    13,436,737.20x = 20,155,105.80 × 7,369,124.40
  4. Step 4: Simplify right side
    13,436,737.20x = 148,525,481,935,361.53
  5. Step 5: Solve for x
    x = 148,525,481,935,361.53/13,436,737.20
  6. Step 6: Final answer
    x = 11,053,686.60

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1.5x scale

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.