Home / 15,812,640.72-21,823,784.64-10,011,960.72

Finding the Fourth Proportional to 15,812,640.72, 21,823,784.64 and 10,011,960.72

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Solution

The fourth proportional to 15,812,640.72, 21,823,784.64 and 10,011,960.72 is: 13,817,987.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812,640.72 : 21,823,784.64 = 10,011,960.72 : x
  2. Step 2: Convert to fraction form
    15,812,640.72/21,823,784.64 = 10,011,960.72/x
  3. Step 3: Cross multiply
    15,812,640.72x = 21,823,784.64 × 10,011,960.72
  4. Step 4: Simplify right side
    15,812,640.72x = 218,498,874,577,419.38
  5. Step 5: Solve for x
    x = 218,498,874,577,419.38/15,812,640.72
  6. Step 6: Final answer
    x = 13,817,987.67

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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.