Home / 3,149,306,784.80-4,723,960,177.20-1,980,986,890.40

Finding the Fourth Proportional to 3,149,306,784.80, 4,723,960,177.20 and 1,980,986,890.40

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Solution

The fourth proportional to 3,149,306,784.80, 4,723,960,177.20 and 1,980,986,890.40 is: 2,971,480,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,149,306,784.80 : 4,723,960,177.20 = 1,980,986,890.40 : x
  2. Step 2: Convert to fraction form
    3,149,306,784.80/4,723,960,177.20 = 1,980,986,890.40/x
  3. Step 3: Cross multiply
    3,149,306,784.80x = 4,723,960,177.20 × 1,980,986,890.40
  4. Step 4: Simplify right side
    3,149,306,784.80x = 9,358,103,181,804,861,440
  5. Step 5: Solve for x
    x = 9,358,103,181,804,861,440/3,149,306,784.80
  6. Step 6: Final answer
    x = 2,971,480,335.60

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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.