Home / 538,402,942.80-807,604,414.20-193,409,816.40

Finding the Fourth Proportional to 538,402,942.80, 807,604,414.20 and 193,409,816.40

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Solution

The fourth proportional to 538,402,942.80, 807,604,414.20 and 193,409,816.40 is: 290,114,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,402,942.80 : 807,604,414.20 = 193,409,816.40 : x
  2. Step 2: Convert to fraction form
    538,402,942.80/807,604,414.20 = 193,409,816.40/x
  3. Step 3: Cross multiply
    538,402,942.80x = 807,604,414.20 × 193,409,816.40
  4. Step 4: Simplify right side
    538,402,942.80x = 156,198,621,474,251,552
  5. Step 5: Solve for x
    x = 156,198,621,474,251,552/538,402,942.80
  6. Step 6: Final answer
    x = 290,114,724.60

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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.