Home / 18,661,030.54-25,740,200.48-12,381,421.95

Finding the Fourth Proportional to 18,661,030.54, 25,740,200.48 and 12,381,421.95

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Solution

The fourth proportional to 18,661,030.54, 25,740,200.48 and 12,381,421.95 is: 17,078,386.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,661,030.54 : 25,740,200.48 = 12,381,421.95 : x
  2. Step 2: Convert to fraction form
    18,661,030.54/25,740,200.48 = 12,381,421.95/x
  3. Step 3: Cross multiply
    18,661,030.54x = 25,740,200.48 × 12,381,421.95
  4. Step 4: Simplify right side
    18,661,030.54x = 318,700,283,251,426.12
  5. Step 5: Solve for x
    x = 318,700,283,251,426.12/18,661,030.54
  6. Step 6: Final answer
    x = 17,078,386.03

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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.