Home / 20,919,091.11-31,360,663.09-7,270,463.94

Finding the Fourth Proportional to 20,919,091.11, 31,360,663.09 and 7,270,463.94

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Solution

The fourth proportional to 20,919,091.11, 31,360,663.09 and 7,270,463.94 is: 10,899,449.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,919,091.11 : 31,360,663.09 = 7,270,463.94 : x
  2. Step 2: Convert to fraction form
    20,919,091.11/31,360,663.09 = 7,270,463.94/x
  3. Step 3: Cross multiply
    20,919,091.11x = 31,360,663.09 × 7,270,463.94
  4. Step 4: Simplify right side
    20,919,091.11x = 228,006,570,130,334
  5. Step 5: Solve for x
    x = 228,006,570,130,334/20,919,091.11
  6. Step 6: Final answer
    x = 10,899,449.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.