Home / 8,045,983.90-12,068,975.85-7,989,996.70

Finding the Fourth Proportional to 8,045,983.90, 12,068,975.85 and 7,989,996.70

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Solution

The fourth proportional to 8,045,983.90, 12,068,975.85 and 7,989,996.70 is: 11,984,995.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,045,983.90 : 12,068,975.85 = 7,989,996.70 : x
  2. Step 2: Convert to fraction form
    8,045,983.90/12,068,975.85 = 7,989,996.70/x
  3. Step 3: Cross multiply
    8,045,983.90x = 12,068,975.85 × 7,989,996.70
  4. Step 4: Simplify right side
    8,045,983.90x = 96,431,077,213,879.69
  5. Step 5: Solve for x
    x = 96,431,077,213,879.69/8,045,983.90
  6. Step 6: Final answer
    x = 11,984,995.05

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Double scale
Find fourth proportional to 8,045,984.90, 12,068,977.35 and 7,989,997.70
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.