Home / 13,290,666.80-19,936,000.20-7,244,049.20

Finding the Fourth Proportional to 13,290,666.80, 19,936,000.20 and 7,244,049.20

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Solution

The fourth proportional to 13,290,666.80, 19,936,000.20 and 7,244,049.20 is: 10,866,073.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290,666.80 : 19,936,000.20 = 7,244,049.20 : x
  2. Step 2: Convert to fraction form
    13,290,666.80/19,936,000.20 = 7,244,049.20/x
  3. Step 3: Cross multiply
    13,290,666.80x = 19,936,000.20 × 7,244,049.20
  4. Step 4: Simplify right side
    13,290,666.80x = 144,417,366,300,009.84
  5. Step 5: Solve for x
    x = 144,417,366,300,009.84/13,290,666.80
  6. Step 6: Final answer
    x = 10,866,073.80

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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.