Home / 556,615,694.44-768,391,178.85-321,620,898.72

Finding the Fourth Proportional to 556,615,694.44, 768,391,178.85 and 321,620,898.72

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Solution

The fourth proportional to 556,615,694.44, 768,391,178.85 and 321,620,898.72 is: 443,987,950.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,615,694.44 : 768,391,178.85 = 321,620,898.72 : x
  2. Step 2: Convert to fraction form
    556,615,694.44/768,391,178.85 = 321,620,898.72/x
  3. Step 3: Cross multiply
    556,615,694.44x = 768,391,178.85 × 321,620,898.72
  4. Step 4: Simplify right side
    556,615,694.44x = 247,130,661,510,257,280
  5. Step 5: Solve for x
    x = 247,130,661,510,257,280/556,615,694.44
  6. Step 6: Final answer
    x = 443,987,950.72

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.