Home / 13,187,594.70-18,199,445.22-7,680,080.70

Finding the Fourth Proportional to 13,187,594.70, 18,199,445.22 and 7,680,080.70

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Solution

The fourth proportional to 13,187,594.70, 18,199,445.22 and 7,680,080.70 is: 10,598,840.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187,594.70 : 18,199,445.22 = 7,680,080.70 : x
  2. Step 2: Convert to fraction form
    13,187,594.70/18,199,445.22 = 7,680,080.70/x
  3. Step 3: Cross multiply
    13,187,594.70x = 18,199,445.22 × 7,680,080.70
  4. Step 4: Simplify right side
    13,187,594.70x = 139,773,207,984,829.25
  5. Step 5: Solve for x
    x = 139,773,207,984,829.25/13,187,594.70
  6. Step 6: Final answer
    x = 10,598,840.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.