Home / 12,591,720.30-18,887,580.45-9,851,846.70

Finding the Fourth Proportional to 12,591,720.30, 18,887,580.45 and 9,851,846.70

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Solution

The fourth proportional to 12,591,720.30, 18,887,580.45 and 9,851,846.70 is: 14,777,770.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,591,720.30 : 18,887,580.45 = 9,851,846.70 : x
  2. Step 2: Convert to fraction form
    12,591,720.30/18,887,580.45 = 9,851,846.70/x
  3. Step 3: Cross multiply
    12,591,720.30x = 18,887,580.45 × 9,851,846.70
  4. Step 4: Simplify right side
    12,591,720.30x = 186,077,547,127,317
  5. Step 5: Solve for x
    x = 186,077,547,127,317/12,591,720.30
  6. Step 6: Final answer
    x = 14,777,770.05

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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.