Home / 20,577,118.31-28,397,699.70-11,409,761.06

Finding the Fourth Proportional to 20,577,118.31, 28,397,699.70 and 11,409,761.06

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Solution

The fourth proportional to 20,577,118.31, 28,397,699.70 and 11,409,761.06 is: 15,746,178.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,577,118.31 : 28,397,699.70 = 11,409,761.06 : x
  2. Step 2: Convert to fraction form
    20,577,118.31/28,397,699.70 = 11,409,761.06/x
  3. Step 3: Cross multiply
    20,577,118.31x = 28,397,699.70 × 11,409,761.06
  4. Step 4: Simplify right side
    20,577,118.31x = 324,010,968,088,645.19
  5. Step 5: Solve for x
    x = 324,010,968,088,645.19/20,577,118.31
  6. Step 6: Final answer
    x = 15,746,178.03

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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.