Home / 111,380,634.43-153,702,959.20-61,818,100.50

Finding the Fourth Proportional to 111,380,634.43, 153,702,959.20 and 61,818,100.50

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Solution

The fourth proportional to 111,380,634.43, 153,702,959.20 and 61,818,100.50 is: 85,307,693.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,380,634.43 : 153,702,959.20 = 61,818,100.50 : x
  2. Step 2: Convert to fraction form
    111,380,634.43/153,702,959.20 = 61,818,100.50/x
  3. Step 3: Cross multiply
    111,380,634.43x = 153,702,959.20 × 61,818,100.50
  4. Step 4: Simplify right side
    111,380,634.43x = 9,501,624,978,972,998
  5. Step 5: Solve for x
    x = 9,501,624,978,972,998/111,380,634.43
  6. Step 6: Final answer
    x = 85,307,693.10

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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.