Home / 21,955,667.81-30,288,885.59-13,251,057.89

Finding the Fourth Proportional to 21,955,667.81, 30,288,885.59 and 13,251,057.89

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Solution

The fourth proportional to 21,955,667.81, 30,288,885.59 and 13,251,057.89 is: 18,280,463.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,955,667.81 : 30,288,885.59 = 13,251,057.89 : x
  2. Step 2: Convert to fraction form
    21,955,667.81/30,288,885.59 = 13,251,057.89/x
  3. Step 3: Cross multiply
    21,955,667.81x = 30,288,885.59 × 13,251,057.89
  4. Step 4: Simplify right side
    21,955,667.81x = 401,359,776,158,977.06
  5. Step 5: Solve for x
    x = 401,359,776,158,977.06/21,955,667.81
  6. Step 6: Final answer
    x = 18,280,463.15

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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.