Home / 8,149,328,999.20-12,223,993,498.80-6,516,742,247.20

Finding the Fourth Proportional to 8,149,328,999.20, 12,223,993,498.80 and 6,516,742,247.20

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Solution

The fourth proportional to 8,149,328,999.20, 12,223,993,498.80 and 6,516,742,247.20 is: 9,775,113,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,149,328,999.20 : 12,223,993,498.80 = 6,516,742,247.20 : x
  2. Step 2: Convert to fraction form
    8,149,328,999.20/12,223,993,498.80 = 6,516,742,247.20/x
  3. Step 3: Cross multiply
    8,149,328,999.20x = 12,223,993,498.80 × 6,516,742,247.20
  4. Step 4: Simplify right side
    8,149,328,999.20x = 79,660,614,863,128,100,864
  5. Step 5: Solve for x
    x = 79,660,614,863,128,100,864/8,149,328,999.20
  6. Step 6: Final answer
    x = 9,775,113,370.80

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Double scale
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Similar ratio
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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.