Home / 8,720,423,999.60-13,080,635,999.40-6,378,682,377.20

Finding the Fourth Proportional to 8,720,423,999.60, 13,080,635,999.40 and 6,378,682,377.20

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Solution

The fourth proportional to 8,720,423,999.60, 13,080,635,999.40 and 6,378,682,377.20 is: 9,568,023,565.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,720,423,999.60 : 13,080,635,999.40 = 6,378,682,377.20 : x
  2. Step 2: Convert to fraction form
    8,720,423,999.60/13,080,635,999.40 = 6,378,682,377.20/x
  3. Step 3: Cross multiply
    8,720,423,999.60x = 13,080,635,999.40 × 6,378,682,377.20
  4. Step 4: Simplify right side
    8,720,423,999.60x = 83,437,222,331,940,683,776
  5. Step 5: Solve for x
    x = 83,437,222,331,940,683,776/8,720,423,999.60
  6. Step 6: Final answer
    x = 9,568,023,565.80

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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.