Home / 12,642,988.75-18,956,803.51-4,957,425.72

Finding the Fourth Proportional to 12,642,988.75, 18,956,803.51 and 4,957,425.72

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Solution

The fourth proportional to 12,642,988.75, 18,956,803.51 and 4,957,425.72 is: 7,433,127.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,642,988.75 : 18,956,803.51 = 4,957,425.72 : x
  2. Step 2: Convert to fraction form
    12,642,988.75/18,956,803.51 = 4,957,425.72/x
  3. Step 3: Cross multiply
    12,642,988.75x = 18,956,803.51 × 4,957,425.72
  4. Step 4: Simplify right side
    12,642,988.75x = 93,976,945,289,460.28
  5. Step 5: Solve for x
    x = 93,976,945,289,460.28/12,642,988.75
  6. Step 6: Final answer
    x = 7,433,127.34

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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.