Home / 30,202,670.80-45,304,006.20-10,005,288.40

Finding the Fourth Proportional to 30,202,670.80, 45,304,006.20 and 10,005,288.40

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Solution

The fourth proportional to 30,202,670.80, 45,304,006.20 and 10,005,288.40 is: 15,007,932.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,202,670.80 : 45,304,006.20 = 10,005,288.40 : x
  2. Step 2: Convert to fraction form
    30,202,670.80/45,304,006.20 = 10,005,288.40/x
  3. Step 3: Cross multiply
    30,202,670.80x = 45,304,006.20 × 10,005,288.40
  4. Step 4: Simplify right side
    30,202,670.80x = 453,279,647,706,388.12
  5. Step 5: Solve for x
    x = 453,279,647,706,388.12/30,202,670.80
  6. Step 6: Final answer
    x = 15,007,932.60

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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.