Home / 20,139,397,220.39-30,203,943,115.61-5,971,049,915.80

Finding the Fourth Proportional to 20,139,397,220.39, 30,203,943,115.61 and 5,971,049,915.80

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Solution

The fourth proportional to 20,139,397,220.39, 30,203,943,115.61 and 5,971,049,915.80 is: 8,955,047,165.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,397,220.39 : 30,203,943,115.61 = 5,971,049,915.80 : x
  2. Step 2: Convert to fraction form
    20,139,397,220.39/30,203,943,115.61 = 5,971,049,915.80/x
  3. Step 3: Cross multiply
    20,139,397,220.39x = 30,203,943,115.61 × 5,971,049,915.80
  4. Step 4: Simplify right side
    20,139,397,220.39x = 180,349,251,997,375,430,656
  5. Step 5: Solve for x
    x = 180,349,251,997,375,430,656/20,139,397,220.39
  6. Step 6: Final answer
    x = 8,955,047,165.70

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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.