Home / 18,753,656.40-28,139,815.80-10,672,837.20

Finding the Fourth Proportional to 18,753,656.40, 28,139,815.80 and 10,672,837.20

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Solution

The fourth proportional to 18,753,656.40, 28,139,815.80 and 10,672,837.20 is: 16,014,566.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753,656.40 : 28,139,815.80 = 10,672,837.20 : x
  2. Step 2: Convert to fraction form
    18,753,656.40/28,139,815.80 = 10,672,837.20/x
  3. Step 3: Cross multiply
    18,753,656.40x = 28,139,815.80 × 10,672,837.20
  4. Step 4: Simplify right side
    18,753,656.40x = 300,331,672,871,387.75
  5. Step 5: Solve for x
    x = 300,331,672,871,387.75/18,753,656.40
  6. Step 6: Final answer
    x = 16,014,566.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.