Home / 136,158,441.03-187,872,950.48-81,159,415.11

Finding the Fourth Proportional to 136,158,441.03, 187,872,950.48 and 81,159,415.11

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Solution

The fourth proportional to 136,158,441.03, 187,872,950.48 and 81,159,415.11 is: 111,984,675.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,158,441.03 : 187,872,950.48 = 81,159,415.11 : x
  2. Step 2: Convert to fraction form
    136,158,441.03/187,872,950.48 = 81,159,415.11/x
  3. Step 3: Cross multiply
    136,158,441.03x = 187,872,950.48 × 81,159,415.11
  4. Step 4: Simplify right side
    136,158,441.03x = 15,247,658,775,540,996
  5. Step 5: Solve for x
    x = 15,247,658,775,540,996/136,158,441.03
  6. Step 6: Final answer
    x = 111,984,675.06

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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.