Home / 18,126,714.61-25,015,417.10-12,837,884.61

Finding the Fourth Proportional to 18,126,714.61, 25,015,417.10 and 12,837,884.61

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Solution

The fourth proportional to 18,126,714.61, 25,015,417.10 and 12,837,884.61 is: 17,716,670.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,126,714.61 : 25,015,417.10 = 12,837,884.61 : x
  2. Step 2: Convert to fraction form
    18,126,714.61/25,015,417.10 = 12,837,884.61/x
  3. Step 3: Cross multiply
    18,126,714.61x = 25,015,417.10 × 12,837,884.61
  4. Step 4: Simplify right side
    18,126,714.61x = 321,145,038,200,820.81
  5. Step 5: Solve for x
    x = 321,145,038,200,820.81/18,126,714.61
  6. Step 6: Final answer
    x = 17,716,670.95

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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.