Home / 13,712,479.07-18,923,433.03-7,518,118.68

Finding the Fourth Proportional to 13,712,479.07, 18,923,433.03 and 7,518,118.68

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Solution

The fourth proportional to 13,712,479.07, 18,923,433.03 and 7,518,118.68 is: 10,375,119.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712,479.07 : 18,923,433.03 = 7,518,118.68 : x
  2. Step 2: Convert to fraction form
    13,712,479.07/18,923,433.03 = 7,518,118.68/x
  3. Step 3: Cross multiply
    13,712,479.07x = 18,923,433.03 × 7,518,118.68
  4. Step 4: Simplify right side
    13,712,479.07x = 142,268,615,352,572
  5. Step 5: Solve for x
    x = 142,268,615,352,572/13,712,479.07
  6. Step 6: Final answer
    x = 10,375,119.97

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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.