Home / 7,203,480,425.10-9,941,113,670.40-3,988,390,387.50

Finding the Fourth Proportional to 7,203,480,425.10, 9,941,113,670.40 and 3,988,390,387.50

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Solution

The fourth proportional to 7,203,480,425.10, 9,941,113,670.40 and 3,988,390,387.50 is: 5,504,150,752.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,203,480,425.10 : 9,941,113,670.40 = 3,988,390,387.50 : x
  2. Step 2: Convert to fraction form
    7,203,480,425.10/9,941,113,670.40 = 3,988,390,387.50/x
  3. Step 3: Cross multiply
    7,203,480,425.10x = 9,941,113,670.40 × 3,988,390,387.50
  4. Step 4: Simplify right side
    7,203,480,425.10x = 39,649,042,204,068,200,448
  5. Step 5: Solve for x
    x = 39,649,042,204,068,200,448/7,203,480,425.10
  6. Step 6: Final answer
    x = 5,504,150,752.73

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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.