Home / 45,420,538.80-68,018,833.80-30,192,020.40

Finding the Fourth Proportional to 45,420,538.80, 68,018,833.80 and 30,192,020.40

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Solution

The fourth proportional to 45,420,538.80, 68,018,833.80 and 30,192,020.40 is: 45,213,598.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,420,538.80 : 68,018,833.80 = 30,192,020.40 : x
  2. Step 2: Convert to fraction form
    45,420,538.80/68,018,833.80 = 30,192,020.40/x
  3. Step 3: Cross multiply
    45,420,538.80x = 68,018,833.80 × 30,192,020.40
  4. Step 4: Simplify right side
    45,420,538.80x = 2,053,626,017,673,809.25
  5. Step 5: Solve for x
    x = 2,053,626,017,673,809.25/45,420,538.80
  6. Step 6: Final answer
    x = 45,213,598.78

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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.