Home / 431,208,281.40-646,812,422.10-329,171,609.40

Finding the Fourth Proportional to 431,208,281.40, 646,812,422.10 and 329,171,609.40

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Solution

The fourth proportional to 431,208,281.40, 646,812,422.10 and 329,171,609.40 is: 493,757,414.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,208,281.40 : 646,812,422.10 = 329,171,609.40 : x
  2. Step 2: Convert to fraction form
    431,208,281.40/646,812,422.10 = 329,171,609.40/x
  3. Step 3: Cross multiply
    431,208,281.40x = 646,812,422.10 × 329,171,609.40
  4. Step 4: Simplify right side
    431,208,281.40x = 212,912,285,962,569,120
  5. Step 5: Solve for x
    x = 212,912,285,962,569,120/431,208,281.40
  6. Step 6: Final answer
    x = 493,757,414.10

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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.