Home / 521,385,693.60-782,582,425.20-317,312,349.60

Finding the Fourth Proportional to 521,385,693.60, 782,582,425.20 and 317,312,349.60

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Solution

The fourth proportional to 521,385,693.60, 782,582,425.20 and 317,312,349.60 is: 476,275,185.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,385,693.60 : 782,582,425.20 = 317,312,349.60 : x
  2. Step 2: Convert to fraction form
    521,385,693.60/782,582,425.20 = 317,312,349.60/x
  3. Step 3: Cross multiply
    521,385,693.60x = 782,582,425.20 × 317,312,349.60
  4. Step 4: Simplify right side
    521,385,693.60x = 248,323,068,095,878,272
  5. Step 5: Solve for x
    x = 248,323,068,095,878,272/521,385,693.60
  6. Step 6: Final answer
    x = 476,275,185.81

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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.