Home / 556,615,695.44-768,391,180.23-321,620,899.72

Finding the Fourth Proportional to 556,615,695.44, 768,391,180.23 and 321,620,899.72

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Solution

The fourth proportional to 556,615,695.44, 768,391,180.23 and 321,620,899.72 is: 443,987,952.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    556,615,695.44 : 768,391,180.23 = 321,620,899.72 : x
  2. Step 2: Convert to fraction form
    556,615,695.44/768,391,180.23 = 321,620,899.72/x
  3. Step 3: Cross multiply
    556,615,695.44x = 768,391,180.23 × 321,620,899.72
  4. Step 4: Simplify right side
    556,615,695.44x = 247,130,662,722,485,312
  5. Step 5: Solve for x
    x = 247,130,662,722,485,312/556,615,695.44
  6. Step 6: Final answer
    x = 443,987,952.10

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1.5x scale

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.