Home / 321,896,876.20-482,845,314.30-117,431,621.80

Finding the Fourth Proportional to 321,896,876.20, 482,845,314.30 and 117,431,621.80

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Solution

The fourth proportional to 321,896,876.20, 482,845,314.30 and 117,431,621.80 is: 176,147,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,896,876.20 : 482,845,314.30 = 117,431,621.80 : x
  2. Step 2: Convert to fraction form
    321,896,876.20/482,845,314.30 = 117,431,621.80/x
  3. Step 3: Cross multiply
    321,896,876.20x = 482,845,314.30 × 117,431,621.80
  4. Step 4: Simplify right side
    321,896,876.20x = 56,701,308,336,779,728
  5. Step 5: Solve for x
    x = 56,701,308,336,779,728/321,896,876.20
  6. Step 6: Final answer
    x = 176,147,432.70

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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.