Home / 28,685,350-39,585,783.80-15,808,294

Finding the Fourth Proportional to 28,685,350, 39,585,783.80 and 15,808,294

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Solution

The fourth proportional to 28,685,350, 39,585,783.80 and 15,808,294 is: 21,815,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,350 : 39,585,783.80 = 15,808,294 : x
  2. Step 2: Convert to fraction form
    28,685,350/39,585,783.80 = 15,808,294/x
  3. Step 3: Cross multiply
    28,685,350x = 39,585,783.80 × 15,808,294
  4. Step 4: Simplify right side
    28,685,350x = 625,783,708,530,837.12
  5. Step 5: Solve for x
    x = 625,783,708,530,837.12/28,685,350
  6. Step 6: Final answer
    x = 21,815,446.16

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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.