Home / 36,015,328-53,989,888.21-12,980,625.15

Finding the Fourth Proportional to 36,015,328, 53,989,888.21 and 12,980,625.15

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Solution

The fourth proportional to 36,015,328, 53,989,888.21 and 12,980,625.15 is: 19,459,006.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,015,328 : 53,989,888.21 = 12,980,625.15 : x
  2. Step 2: Convert to fraction form
    36,015,328/53,989,888.21 = 12,980,625.15/x
  3. Step 3: Cross multiply
    36,015,328x = 53,989,888.21 × 12,980,625.15
  4. Step 4: Simplify right side
    36,015,328x = 700,822,500,744,414.50
  5. Step 5: Solve for x
    x = 700,822,500,744,414.50/36,015,328
  6. Step 6: Final answer
    x = 19,459,006.47

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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.