Home / 13,195,000.80-19,780,981.20-5,113,490.40

Finding the Fourth Proportional to 13,195,000.80, 19,780,981.20 and 5,113,490.40

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Solution

The fourth proportional to 13,195,000.80, 19,780,981.20 and 5,113,490.40 is: 7,665,771.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,195,000.80 : 19,780,981.20 = 5,113,490.40 : x
  2. Step 2: Convert to fraction form
    13,195,000.80/19,780,981.20 = 5,113,490.40/x
  3. Step 3: Cross multiply
    13,195,000.80x = 19,780,981.20 × 5,113,490.40
  4. Step 4: Simplify right side
    13,195,000.80x = 101,149,857,468,780.48
  5. Step 5: Solve for x
    x = 101,149,857,468,780.48/13,195,000.80
  6. Step 6: Final answer
    x = 7,665,771.23

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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.