Home / 431,362,891.40-647,044,337.10-329,326,219.40

Finding the Fourth Proportional to 431,362,891.40, 647,044,337.10 and 329,326,219.40

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Solution

The fourth proportional to 431,362,891.40, 647,044,337.10 and 329,326,219.40 is: 493,989,329.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,362,891.40 : 647,044,337.10 = 329,326,219.40 : x
  2. Step 2: Convert to fraction form
    431,362,891.40/647,044,337.10 = 329,326,219.40/x
  3. Step 3: Cross multiply
    431,362,891.40x = 647,044,337.10 × 329,326,219.40
  4. Step 4: Simplify right side
    431,362,891.40x = 213,088,665,321,322,144
  5. Step 5: Solve for x
    x = 213,088,665,321,322,144/431,362,891.40
  6. Step 6: Final answer
    x = 493,989,329.10

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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.