Home / 13,191,444.80-19,775,647.20-5,109,934.40

Finding the Fourth Proportional to 13,191,444.80, 19,775,647.20 and 5,109,934.40

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Solution

The fourth proportional to 13,191,444.80, 19,775,647.20 and 5,109,934.40 is: 7,660,439.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,191,444.80 : 19,775,647.20 = 5,109,934.40 : x
  2. Step 2: Convert to fraction form
    13,191,444.80/19,775,647.20 = 5,109,934.40/x
  3. Step 3: Cross multiply
    13,191,444.80x = 19,775,647.20 × 5,109,934.40
  4. Step 4: Simplify right side
    13,191,444.80x = 101,052,259,909,543.69
  5. Step 5: Solve for x
    x = 101,052,259,909,543.69/13,191,444.80
  6. Step 6: Final answer
    x = 7,660,439.13

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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.