Home / 18,679,072.91-25,778,275.79-10,306,401.75

Finding the Fourth Proportional to 18,679,072.91, 25,778,275.79 and 10,306,401.75

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Solution

The fourth proportional to 18,679,072.91, 25,778,275.79 and 10,306,401.75 is: 14,223,471.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679,072.91 : 25,778,275.79 = 10,306,401.75 : x
  2. Step 2: Convert to fraction form
    18,679,072.91/25,778,275.79 = 10,306,401.75/x
  3. Step 3: Cross multiply
    18,679,072.91x = 25,778,275.79 × 10,306,401.75
  4. Step 4: Simplify right side
    18,679,072.91x = 265,681,266,714,038.62
  5. Step 5: Solve for x
    x = 265,681,266,714,038.62/18,679,072.91
  6. Step 6: Final answer
    x = 14,223,471.80

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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.