Home / 781,661,956.92-1,172,530,642.68-257,019,443.34

Finding the Fourth Proportional to 781,661,956.92, 1,172,530,642.68 and 257,019,443.34

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Solution

The fourth proportional to 781,661,956.92, 1,172,530,642.68 and 257,019,443.34 is: 385,541,563.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,661,956.92 : 1,172,530,642.68 = 257,019,443.34 : x
  2. Step 2: Convert to fraction form
    781,661,956.92/1,172,530,642.68 = 257,019,443.34/x
  3. Step 3: Cross multiply
    781,661,956.92x = 1,172,530,642.68 × 257,019,443.34
  4. Step 4: Simplify right side
    781,661,956.92x = 301,363,173,080,706,048
  5. Step 5: Solve for x
    x = 301,363,173,080,706,048/781,661,956.92
  6. Step 6: Final answer
    x = 385,541,563.60

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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.