Home / 7,218,769.20-10,830,918.60-7,105,412.40

Finding the Fourth Proportional to 7,218,769.20, 10,830,918.60 and 7,105,412.40

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Solution

The fourth proportional to 7,218,769.20, 10,830,918.60 and 7,105,412.40 is: 10,660,839.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,218,769.20 : 10,830,918.60 = 7,105,412.40 : x
  2. Step 2: Convert to fraction form
    7,218,769.20/10,830,918.60 = 7,105,412.40/x
  3. Step 3: Cross multiply
    7,218,769.20x = 10,830,918.60 × 7,105,412.40
  4. Step 4: Simplify right side
    7,218,769.20x = 76,958,143,323,830.64
  5. Step 5: Solve for x
    x = 76,958,143,323,830.64/7,218,769.20
  6. Step 6: Final answer
    x = 10,660,839.98

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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.