Home / 28,063,686-38,727,886.68-15,186,630

Finding the Fourth Proportional to 28,063,686, 38,727,886.68 and 15,186,630

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Solution

The fourth proportional to 28,063,686, 38,727,886.68 and 15,186,630 is: 20,957,549.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,063,686 : 38,727,886.68 = 15,186,630 : x
  2. Step 2: Convert to fraction form
    28,063,686/38,727,886.68 = 15,186,630/x
  3. Step 3: Cross multiply
    28,063,686x = 38,727,886.68 × 15,186,630
  4. Step 4: Simplify right side
    28,063,686x = 588,146,085,691,088.38
  5. Step 5: Solve for x
    x = 588,146,085,691,088.38/28,063,686
  6. Step 6: Final answer
    x = 20,957,549.40

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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.