Home / 111,905,972.70-167,858,959.05-66,444,366.30

Finding the Fourth Proportional to 111,905,972.70, 167,858,959.05 and 66,444,366.30

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Solution

The fourth proportional to 111,905,972.70, 167,858,959.05 and 66,444,366.30 is: 99,666,549.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,905,972.70 : 167,858,959.05 = 66,444,366.30 : x
  2. Step 2: Convert to fraction form
    111,905,972.70/167,858,959.05 = 66,444,366.30/x
  3. Step 3: Cross multiply
    111,905,972.70x = 167,858,959.05 × 66,444,366.30
  4. Step 4: Simplify right side
    111,905,972.70x = 11,153,282,161,854,900
  5. Step 5: Solve for x
    x = 11,153,282,161,854,900/111,905,972.70
  6. Step 6: Final answer
    x = 99,666,549.45

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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.