Home / 431,209,206.40-646,813,809.60-329,172,534.40

Finding the Fourth Proportional to 431,209,206.40, 646,813,809.60 and 329,172,534.40

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Solution

The fourth proportional to 431,209,206.40, 646,813,809.60 and 329,172,534.40 is: 493,758,801.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,209,206.40 : 646,813,809.60 = 329,172,534.40 : x
  2. Step 2: Convert to fraction form
    431,209,206.40/646,813,809.60 = 329,172,534.40/x
  3. Step 3: Cross multiply
    431,209,206.40x = 646,813,809.60 × 329,172,534.40
  4. Step 4: Simplify right side
    431,209,206.40x = 212,913,340,990,951,040
  5. Step 5: Solve for x
    x = 212,913,340,990,951,040/431,209,206.40
  6. Step 6: Final answer
    x = 493,758,801.60

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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.