Home / 978,550,674.90-1,350,400,151.79-538,517,526.90

Finding the Fourth Proportional to 978,550,674.90, 1,350,400,151.79 and 538,517,526.90

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Solution

The fourth proportional to 978,550,674.90, 1,350,400,151.79 and 538,517,526.90 is: 743,154,308.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,550,674.90 : 1,350,400,151.79 = 538,517,526.90 : x
  2. Step 2: Convert to fraction form
    978,550,674.90/1,350,400,151.79 = 538,517,526.90/x
  3. Step 3: Cross multiply
    978,550,674.90x = 1,350,400,151.79 × 538,517,526.90
  4. Step 4: Simplify right side
    978,550,674.90x = 727,214,150,067,335,296
  5. Step 5: Solve for x
    x = 727,214,150,067,335,296/978,550,674.90
  6. Step 6: Final answer
    x = 743,154,308.43

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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.