Home / 992,354,709.60-1,488,532,064.40-664,987,053.60

Finding the Fourth Proportional to 992,354,709.60, 1,488,532,064.40 and 664,987,053.60

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Solution

The fourth proportional to 992,354,709.60, 1,488,532,064.40 and 664,987,053.60 is: 997,480,580.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,354,709.60 : 1,488,532,064.40 = 664,987,053.60 : x
  2. Step 2: Convert to fraction form
    992,354,709.60/1,488,532,064.40 = 664,987,053.60/x
  3. Step 3: Cross multiply
    992,354,709.60x = 1,488,532,064.40 × 664,987,053.60
  4. Step 4: Simplify right side
    992,354,709.60x = 989,854,551,694,481,536
  5. Step 5: Solve for x
    x = 989,854,551,694,481,536/992,354,709.60
  6. Step 6: Final answer
    x = 997,480,580.40

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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.