Home / 990,668,334.60-1,486,002,501.90-253,736,814.60

Finding the Fourth Proportional to 990,668,334.60, 1,486,002,501.90 and 253,736,814.60

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Solution

The fourth proportional to 990,668,334.60, 1,486,002,501.90 and 253,736,814.60 is: 380,605,221.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,668,334.60 : 1,486,002,501.90 = 253,736,814.60 : x
  2. Step 2: Convert to fraction form
    990,668,334.60/1,486,002,501.90 = 253,736,814.60/x
  3. Step 3: Cross multiply
    990,668,334.60x = 1,486,002,501.90 × 253,736,814.60
  4. Step 4: Simplify right side
    990,668,334.60x = 377,053,541,319,736,448
  5. Step 5: Solve for x
    x = 377,053,541,319,736,448/990,668,334.60
  6. Step 6: Final answer
    x = 380,605,221.90

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Similar ratio
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1.5x scale

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.