Home / 990,528,801.60-1,485,793,202.40-664,011,451.20

Finding the Fourth Proportional to 990,528,801.60, 1,485,793,202.40 and 664,011,451.20

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Solution

The fourth proportional to 990,528,801.60, 1,485,793,202.40 and 664,011,451.20 is: 996,017,176.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    990,528,801.60 : 1,485,793,202.40 = 664,011,451.20 : x
  2. Step 2: Convert to fraction form
    990,528,801.60/1,485,793,202.40 = 664,011,451.20/x
  3. Step 3: Cross multiply
    990,528,801.60x = 1,485,793,202.40 × 664,011,451.20
  4. Step 4: Simplify right side
    990,528,801.60x = 986,583,700,508,719,488
  5. Step 5: Solve for x
    x = 986,583,700,508,719,488/990,528,801.60
  6. Step 6: Final answer
    x = 996,017,176.80

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Double scale
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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.