Home / 521,520,772,647.60-782,281,158,971.40-506,827,491,879.60

Finding the Fourth Proportional to 521,520,772,647.60, 782,281,158,971.40 and 506,827,491,879.60

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Solution

The fourth proportional to 521,520,772,647.60, 782,281,158,971.40 and 506,827,491,879.60 is: 760,241,237,819.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,520,772,647.60 : 782,281,158,971.40 = 506,827,491,879.60 : x
  2. Step 2: Convert to fraction form
    521,520,772,647.60/782,281,158,971.40 = 506,827,491,879.60/x
  3. Step 3: Cross multiply
    521,520,772,647.60x = 782,281,158,971.40 × 506,827,491,879.60
  4. Step 4: Simplify right side
    521,520,772,647.60x = 396,481,597,746,141,292,658,688
  5. Step 5: Solve for x
    x = 396,481,597,746,141,292,658,688/521,520,772,647.60
  6. Step 6: Final answer
    x = 760,241,237,819.40

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Double scale
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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.