Home / 27,902,661.50-38,506,507.14-15,343,063.78

Finding the Fourth Proportional to 27,902,661.50, 38,506,507.14 and 15,343,063.78

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Solution

The fourth proportional to 27,902,661.50, 38,506,507.14 and 15,343,063.78 is: 21,173,886.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,902,661.50 : 38,506,507.14 = 15,343,063.78 : x
  2. Step 2: Convert to fraction form
    27,902,661.50/38,506,507.14 = 15,343,063.78/x
  3. Step 3: Cross multiply
    27,902,661.50x = 38,506,507.14 × 15,343,063.78
  4. Step 4: Simplify right side
    27,902,661.50x = 590,807,794,994,045.38
  5. Step 5: Solve for x
    x = 590,807,794,994,045.38/27,902,661.50
  6. Step 6: Final answer
    x = 21,173,886.76

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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.