Home / 55,172,941.17-76,141,020.78-30,726,655.17

Finding the Fourth Proportional to 55,172,941.17, 76,141,020.78 and 30,726,655.17

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Solution

The fourth proportional to 55,172,941.17, 76,141,020.78 and 30,726,655.17 is: 42,404,099.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,172,941.17 : 76,141,020.78 = 30,726,655.17 : x
  2. Step 2: Convert to fraction form
    55,172,941.17/76,141,020.78 = 30,726,655.17/x
  3. Step 3: Cross multiply
    55,172,941.17x = 76,141,020.78 × 30,726,655.17
  4. Step 4: Simplify right side
    55,172,941.17x = 2,339,558,889,855,301.50
  5. Step 5: Solve for x
    x = 2,339,558,889,855,301.50/55,172,941.17
  6. Step 6: Final answer
    x = 42,404,099.55

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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.