Home / 13,247,996.80-19,871,995.20-7,201,379.20

Finding the Fourth Proportional to 13,247,996.80, 19,871,995.20 and 7,201,379.20

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Solution

The fourth proportional to 13,247,996.80, 19,871,995.20 and 7,201,379.20 is: 10,802,068.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,247,996.80 : 19,871,995.20 = 7,201,379.20 : x
  2. Step 2: Convert to fraction form
    13,247,996.80/19,871,995.20 = 7,201,379.20/x
  3. Step 3: Cross multiply
    13,247,996.80x = 19,871,995.20 × 7,201,379.20
  4. Step 4: Simplify right side
    13,247,996.80x = 143,105,772,895,779.84
  5. Step 5: Solve for x
    x = 143,105,772,895,779.84/13,247,996.80
  6. Step 6: Final answer
    x = 10,802,068.80

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Similar ratio
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1.5x scale

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.