Home / 10,120,918.80-15,184,877.40-9,770,998.80

Finding the Fourth Proportional to 10,120,918.80, 15,184,877.40 and 9,770,998.80

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Solution

The fourth proportional to 10,120,918.80, 15,184,877.40 and 9,770,998.80 is: 14,659,876.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120,918.80 : 15,184,877.40 = 9,770,998.80 : x
  2. Step 2: Convert to fraction form
    10,120,918.80/15,184,877.40 = 9,770,998.80/x
  3. Step 3: Cross multiply
    10,120,918.80x = 15,184,877.40 × 9,770,998.80
  4. Step 4: Simplify right side
    10,120,918.80x = 148,371,418,853,547.12
  5. Step 5: Solve for x
    x = 148,371,418,853,547.12/10,120,918.80
  6. Step 6: Final answer
    x = 14,659,876.42

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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.