Home / 1,990,667,918.40-2,986,001,877.60-900,186,561.60

Finding the Fourth Proportional to 1,990,667,918.40, 2,986,001,877.60 and 900,186,561.60

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Solution

The fourth proportional to 1,990,667,918.40, 2,986,001,877.60 and 900,186,561.60 is: 1,350,279,842.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,990,667,918.40 : 2,986,001,877.60 = 900,186,561.60 : x
  2. Step 2: Convert to fraction form
    1,990,667,918.40/2,986,001,877.60 = 900,186,561.60/x
  3. Step 3: Cross multiply
    1,990,667,918.40x = 2,986,001,877.60 × 900,186,561.60
  4. Step 4: Simplify right side
    1,990,667,918.40x = 2,687,958,763,127,887,872
  5. Step 5: Solve for x
    x = 2,687,958,763,127,887,872/1,990,667,918.40
  6. Step 6: Final answer
    x = 1,350,279,842.40

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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.