Home / 18,245,196.80-25,178,381.40-9,985,254.26

Finding the Fourth Proportional to 18,245,196.80, 25,178,381.40 and 9,985,254.26

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Solution

The fourth proportional to 18,245,196.80, 25,178,381.40 and 9,985,254.26 is: 13,779,656.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,245,196.80 : 25,178,381.40 = 9,985,254.26 : x
  2. Step 2: Convert to fraction form
    18,245,196.80/25,178,381.40 = 9,985,254.26/x
  3. Step 3: Cross multiply
    18,245,196.80x = 25,178,381.40 × 9,985,254.26
  4. Step 4: Simplify right side
    18,245,196.80x = 251,412,540,134,254.75
  5. Step 5: Solve for x
    x = 251,412,540,134,254.75/18,245,196.80
  6. Step 6: Final answer
    x = 13,779,656.25

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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.