Home / 521,520,771,812.60-782,281,157,718.90-506,827,491,044.60

Finding the Fourth Proportional to 521,520,771,812.60, 782,281,157,718.90 and 506,827,491,044.60

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Solution

The fourth proportional to 521,520,771,812.60, 782,281,157,718.90 and 506,827,491,044.60 is: 760,241,236,566.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,771,812.60 : 782,281,157,718.90 = 506,827,491,044.60 : x
  2. Step 2: Convert to fraction form
    521,520,771,812.60/782,281,157,718.90 = 506,827,491,044.60/x
  3. Step 3: Cross multiply
    521,520,771,812.60x = 782,281,157,718.90 × 506,827,491,044.60
  4. Step 4: Simplify right side
    521,520,771,812.60x = 396,481,596,458,135,092,985,856
  5. Step 5: Solve for x
    x = 396,481,596,458,135,092,985,856/521,520,771,812.60
  6. Step 6: Final answer
    x = 760,241,236,566.90

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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.