Home / 20,238,463.46-27,929,116.32-11,071,106.21

Finding the Fourth Proportional to 20,238,463.46, 27,929,116.32 and 11,071,106.21

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Solution

The fourth proportional to 20,238,463.46, 27,929,116.32 and 11,071,106.21 is: 15,278,146.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,238,463.46 : 27,929,116.32 = 11,071,106.21 : x
  2. Step 2: Convert to fraction form
    20,238,463.46/27,929,116.32 = 11,071,106.21/x
  3. Step 3: Cross multiply
    20,238,463.46x = 27,929,116.32 × 11,071,106.21
  4. Step 4: Simplify right side
    20,238,463.46x = 309,206,213,130,164.38
  5. Step 5: Solve for x
    x = 309,206,213,130,164.38/20,238,463.46
  6. Step 6: Final answer
    x = 15,278,146.67

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Double scale
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1.5x scale

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.