Home / 12,747,987,421.80-19,121,981,132.70-4,465,798,301.40

Finding the Fourth Proportional to 12,747,987,421.80, 19,121,981,132.70 and 4,465,798,301.40

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Solution

The fourth proportional to 12,747,987,421.80, 19,121,981,132.70 and 4,465,798,301.40 is: 6,698,697,452.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747,987,421.80 : 19,121,981,132.70 = 4,465,798,301.40 : x
  2. Step 2: Convert to fraction form
    12,747,987,421.80/19,121,981,132.70 = 4,465,798,301.40/x
  3. Step 3: Cross multiply
    12,747,987,421.80x = 19,121,981,132.70 × 4,465,798,301.40
  4. Step 4: Simplify right side
    12,747,987,421.80x = 85,394,910,861,814,497,280
  5. Step 5: Solve for x
    x = 85,394,910,861,814,497,280/12,747,987,421.80
  6. Step 6: Final answer
    x = 6,698,697,452.10

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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.