Home / 12,849,905.48-17,729,896.02-7,691,307.08

Finding the Fourth Proportional to 12,849,905.48, 17,729,896.02 and 7,691,307.08

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Solution

The fourth proportional to 12,849,905.48, 17,729,896.02 and 7,691,307.08 is: 10,612,223.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,849,905.48 : 17,729,896.02 = 7,691,307.08 : x
  2. Step 2: Convert to fraction form
    12,849,905.48/17,729,896.02 = 7,691,307.08/x
  3. Step 3: Cross multiply
    12,849,905.48x = 17,729,896.02 × 7,691,307.08
  4. Step 4: Simplify right side
    12,849,905.48x = 136,366,074,786,289.81
  5. Step 5: Solve for x
    x = 136,366,074,786,289.81/12,849,905.48
  6. Step 6: Final answer
    x = 10,612,223.96

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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.