Home / 431,208,710.40-646,813,065.60-329,172,038.40

Finding the Fourth Proportional to 431,208,710.40, 646,813,065.60 and 329,172,038.40

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Solution

The fourth proportional to 431,208,710.40, 646,813,065.60 and 329,172,038.40 is: 493,758,057.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,208,710.40 : 646,813,065.60 = 329,172,038.40 : x
  2. Step 2: Convert to fraction form
    431,208,710.40/646,813,065.60 = 329,172,038.40/x
  3. Step 3: Cross multiply
    431,208,710.40x = 646,813,065.60 × 329,172,038.40
  4. Step 4: Simplify right side
    431,208,710.40x = 212,912,775,267,304,896
  5. Step 5: Solve for x
    x = 212,912,775,267,304,896/431,208,710.40
  6. Step 6: Final answer
    x = 493,758,057.60

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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.