Home / 28,685,340-39,585,770.01-15,808,284

Finding the Fourth Proportional to 28,685,340, 39,585,770.01 and 15,808,284

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Solution

The fourth proportional to 28,685,340, 39,585,770.01 and 15,808,284 is: 21,815,432.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,685,340 : 39,585,770.01 = 15,808,284 : x
  2. Step 2: Convert to fraction form
    28,685,340/39,585,770.01 = 15,808,284/x
  3. Step 3: Cross multiply
    28,685,340x = 39,585,770.01 × 15,808,284
  4. Step 4: Simplify right side
    28,685,340x = 625,783,094,676,762.75
  5. Step 5: Solve for x
    x = 625,783,094,676,762.75/28,685,340
  6. Step 6: Final answer
    x = 21,815,432.37

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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.