Home / 28,816,482.72-39,766,627.20-15,585,674.32

Finding the Fourth Proportional to 28,816,482.72, 39,766,627.20 and 15,585,674.32

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Solution

The fourth proportional to 28,816,482.72, 39,766,627.20 and 15,585,674.32 is: 21,508,166.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,816,482.72 : 39,766,627.20 = 15,585,674.32 : x
  2. Step 2: Convert to fraction form
    28,816,482.72/39,766,627.20 = 15,585,674.32/x
  3. Step 3: Cross multiply
    28,816,482.72x = 39,766,627.20 × 15,585,674.32
  4. Step 4: Simplify right side
    28,816,482.72x = 619,789,700,344,053.50
  5. Step 5: Solve for x
    x = 619,789,700,344,053.50/28,816,482.72
  6. Step 6: Final answer
    x = 21,508,166.22

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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.