Home / 385,511,180.10-578,321,677.50-119,639,862.95

Finding the Fourth Proportional to 385,511,180.10, 578,321,677.50 and 119,639,862.95

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Solution

The fourth proportional to 385,511,180.10, 578,321,677.50 and 119,639,862.95 is: 179,476,834.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,511,180.10 : 578,321,677.50 = 119,639,862.95 : x
  2. Step 2: Convert to fraction form
    385,511,180.10/578,321,677.50 = 119,639,862.95/x
  3. Step 3: Cross multiply
    385,511,180.10x = 578,321,677.50 × 119,639,862.95
  4. Step 4: Simplify right side
    385,511,180.10x = 69,190,326,236,515,904
  5. Step 5: Solve for x
    x = 69,190,326,236,515,904/385,511,180.10
  6. Step 6: Final answer
    x = 179,476,834.42

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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.