Home / 12,161,187.40-18,241,781.10-3,186,646.60

Finding the Fourth Proportional to 12,161,187.40, 18,241,781.10 and 3,186,646.60

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Solution

The fourth proportional to 12,161,187.40, 18,241,781.10 and 3,186,646.60 is: 4,779,969.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,187.40 : 18,241,781.10 = 3,186,646.60 : x
  2. Step 2: Convert to fraction form
    12,161,187.40/18,241,781.10 = 3,186,646.60/x
  3. Step 3: Cross multiply
    12,161,187.40x = 18,241,781.10 × 3,186,646.60
  4. Step 4: Simplify right side
    12,161,187.40x = 58,130,109,720,259.27
  5. Step 5: Solve for x
    x = 58,130,109,720,259.27/12,161,187.40
  6. Step 6: Final answer
    x = 4,779,969.90

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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.