Home / 66,424,638.47-91,654,647.66-38,540,956.28

Finding the Fourth Proportional to 66,424,638.47, 91,654,647.66 and 38,540,956.28

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Solution

The fourth proportional to 66,424,638.47, 91,654,647.66 and 38,540,956.28 is: 53,179,932.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,424,638.47 : 91,654,647.66 = 38,540,956.28 : x
  2. Step 2: Convert to fraction form
    66,424,638.47/91,654,647.66 = 38,540,956.28/x
  3. Step 3: Cross multiply
    66,424,638.47x = 91,654,647.66 × 38,540,956.28
  4. Step 4: Simplify right side
    66,424,638.47x = 3,532,457,767,864,591
  5. Step 5: Solve for x
    x = 3,532,457,767,864,591/66,424,638.47
  6. Step 6: Final answer
    x = 53,179,932.17

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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.