Home / 298,490,530.60-447,310,643.10-220,156,127.20

Finding the Fourth Proportional to 298,490,530.60, 447,310,643.10 and 220,156,127.20

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Solution

The fourth proportional to 298,490,530.60, 447,310,643.10 and 220,156,127.20 is: 329,920,613.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,490,530.60 : 447,310,643.10 = 220,156,127.20 : x
  2. Step 2: Convert to fraction form
    298,490,530.60/447,310,643.10 = 220,156,127.20/x
  3. Step 3: Cross multiply
    298,490,530.60x = 447,310,643.10 × 220,156,127.20
  4. Step 4: Simplify right side
    298,490,530.60x = 98,478,178,840,237,408
  5. Step 5: Solve for x
    x = 98,478,178,840,237,408/298,490,530.60
  6. Step 6: Final answer
    x = 329,920,613.03

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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.