Home / 20,142,172.80-30,213,259.20-17,402,299.20

Finding the Fourth Proportional to 20,142,172.80, 30,213,259.20 and 17,402,299.20

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Solution

The fourth proportional to 20,142,172.80, 30,213,259.20 and 17,402,299.20 is: 26,103,448.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,142,172.80 : 30,213,259.20 = 17,402,299.20 : x
  2. Step 2: Convert to fraction form
    20,142,172.80/30,213,259.20 = 17,402,299.20/x
  3. Step 3: Cross multiply
    20,142,172.80x = 30,213,259.20 × 17,402,299.20
  4. Step 4: Simplify right side
    20,142,172.80x = 525,780,176,405,552.62
  5. Step 5: Solve for x
    x = 525,780,176,405,552.62/20,142,172.80
  6. Step 6: Final answer
    x = 26,103,448.80

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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.