Home / 28,013,839.88-38,659,100.65-15,136,783.88

Finding the Fourth Proportional to 28,013,839.88, 38,659,100.65 and 15,136,783.88

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Solution

The fourth proportional to 28,013,839.88, 38,659,100.65 and 15,136,783.88 is: 20,888,762.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,013,839.88 : 38,659,100.65 = 15,136,783.88 : x
  2. Step 2: Convert to fraction form
    28,013,839.88/38,659,100.65 = 15,136,783.88/x
  3. Step 3: Cross multiply
    28,013,839.88x = 38,659,100.65 × 15,136,783.88
  4. Step 4: Simplify right side
    28,013,839.88x = 585,174,451,303,080.12
  5. Step 5: Solve for x
    x = 585,174,451,303,080.12/28,013,839.88
  6. Step 6: Final answer
    x = 20,888,762.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.