Home / 2,931,209,747.60-4,396,814,621.40-992,512,979.60

Finding the Fourth Proportional to 2,931,209,747.60, 4,396,814,621.40 and 992,512,979.60

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Solution

The fourth proportional to 2,931,209,747.60, 4,396,814,621.40 and 992,512,979.60 is: 1,488,769,469.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,931,209,747.60 : 4,396,814,621.40 = 992,512,979.60 : x
  2. Step 2: Convert to fraction form
    2,931,209,747.60/4,396,814,621.40 = 992,512,979.60/x
  3. Step 3: Cross multiply
    2,931,209,747.60x = 4,396,814,621.40 × 992,512,979.60
  4. Step 4: Simplify right side
    2,931,209,747.60x = 4,363,895,580,634,559,488
  5. Step 5: Solve for x
    x = 4,363,895,580,634,559,488/2,931,209,747.60
  6. Step 6: Final answer
    x = 1,488,769,469.40

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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.