Home / 185,428,668.40-278,143,002.60-137,055,727.60

Finding the Fourth Proportional to 185,428,668.40, 278,143,002.60 and 137,055,727.60

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Solution

The fourth proportional to 185,428,668.40, 278,143,002.60 and 137,055,727.60 is: 205,583,591.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,428,668.40 : 278,143,002.60 = 137,055,727.60 : x
  2. Step 2: Convert to fraction form
    185,428,668.40/278,143,002.60 = 137,055,727.60/x
  3. Step 3: Cross multiply
    185,428,668.40x = 278,143,002.60 × 137,055,727.60
  4. Step 4: Simplify right side
    185,428,668.40x = 38,121,091,598,191,696
  5. Step 5: Solve for x
    x = 38,121,091,598,191,696/185,428,668.40
  6. Step 6: Final answer
    x = 205,583,591.40

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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.