Home / 521,567,995.20-782,351,992.80-262,683,182.40

Finding the Fourth Proportional to 521,567,995.20, 782,351,992.80 and 262,683,182.40

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Solution

The fourth proportional to 521,567,995.20, 782,351,992.80 and 262,683,182.40 is: 394,024,773.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,567,995.20 : 782,351,992.80 = 262,683,182.40 : x
  2. Step 2: Convert to fraction form
    521,567,995.20/782,351,992.80 = 262,683,182.40/x
  3. Step 3: Cross multiply
    521,567,995.20x = 782,351,992.80 × 262,683,182.40
  4. Step 4: Simplify right side
    521,567,995.20x = 205,510,711,225,685,888
  5. Step 5: Solve for x
    x = 205,510,711,225,685,888/521,567,995.20
  6. Step 6: Final answer
    x = 394,024,773.60

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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.