Home / 391,203,028.90-586,804,543.35-361,641,787.30

Finding the Fourth Proportional to 391,203,028.90, 586,804,543.35 and 361,641,787.30

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Solution

The fourth proportional to 391,203,028.90, 586,804,543.35 and 361,641,787.30 is: 542,462,680.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,203,028.90 : 586,804,543.35 = 361,641,787.30 : x
  2. Step 2: Convert to fraction form
    391,203,028.90/586,804,543.35 = 361,641,787.30/x
  3. Step 3: Cross multiply
    391,203,028.90x = 586,804,543.35 × 361,641,787.30
  4. Step 4: Simplify right side
    391,203,028.90x = 212,213,043,852,854,336
  5. Step 5: Solve for x
    x = 212,213,043,852,854,336/391,203,028.90
  6. Step 6: Final answer
    x = 542,462,680.95

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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.