Home / 663,553,619.20-995,330,428.80-323,814,995.20

Finding the Fourth Proportional to 663,553,619.20, 995,330,428.80 and 323,814,995.20

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Solution

The fourth proportional to 663,553,619.20, 995,330,428.80 and 323,814,995.20 is: 485,722,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,553,619.20 : 995,330,428.80 = 323,814,995.20 : x
  2. Step 2: Convert to fraction form
    663,553,619.20/995,330,428.80 = 323,814,995.20/x
  3. Step 3: Cross multiply
    663,553,619.20x = 995,330,428.80 × 323,814,995.20
  4. Step 4: Simplify right side
    663,553,619.20x = 322,302,918,024,285,888
  5. Step 5: Solve for x
    x = 322,302,918,024,285,888/663,553,619.20
  6. Step 6: Final answer
    x = 485,722,492.80

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Similar ratio
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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.