Home / 18,679,071.91-25,778,274.41-10,306,400.75

Finding the Fourth Proportional to 18,679,071.91, 25,778,274.41 and 10,306,400.75

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Solution

The fourth proportional to 18,679,071.91, 25,778,274.41 and 10,306,400.75 is: 14,223,470.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,679,071.91 : 25,778,274.41 = 10,306,400.75 : x
  2. Step 2: Convert to fraction form
    18,679,071.91/25,778,274.41 = 10,306,400.75/x
  3. Step 3: Cross multiply
    18,679,071.91x = 25,778,274.41 × 10,306,400.75
  4. Step 4: Simplify right side
    18,679,071.91x = 265,681,226,712,929.81
  5. Step 5: Solve for x
    x = 265,681,226,712,929.81/18,679,071.91
  6. Step 6: Final answer
    x = 14,223,470.42

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1.5x scale

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.