Home / 285,995,382-428,929,229.16-132,621,509.04

Finding the Fourth Proportional to 285,995,382, 428,929,229.16 and 132,621,509.04

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Solution

The fourth proportional to 285,995,382, 428,929,229.16 and 132,621,509.04 is: 198,902,657.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,995,382 : 428,929,229.16 = 132,621,509.04 : x
  2. Step 2: Convert to fraction form
    285,995,382/428,929,229.16 = 132,621,509.04/x
  3. Step 3: Cross multiply
    285,995,382x = 428,929,229.16 × 132,621,509.04
  4. Step 4: Simplify right side
    285,995,382x = 56,885,241,642,563,176
  5. Step 5: Solve for x
    x = 56,885,241,642,563,176/285,995,382
  6. Step 6: Final answer
    x = 198,902,657.95

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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.