Home / 261,068,800.68-391,647,815.84-107,630,980.20

Finding the Fourth Proportional to 261,068,800.68, 391,647,815.84 and 107,630,980.20

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Solution

The fourth proportional to 261,068,800.68, 391,647,815.84 and 107,630,980.20 is: 161,464,863.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,068,800.68 : 391,647,815.84 = 107,630,980.20 : x
  2. Step 2: Convert to fraction form
    261,068,800.68/391,647,815.84 = 107,630,980.20/x
  3. Step 3: Cross multiply
    261,068,800.68x = 391,647,815.84 × 107,630,980.20
  4. Step 4: Simplify right side
    261,068,800.68x = 42,153,438,312,048,288
  5. Step 5: Solve for x
    x = 42,153,438,312,048,288/261,068,800.68
  6. Step 6: Final answer
    x = 161,464,863.68

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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.