Home / 20,814,101.28-31,198,376.88-10,717,328.16

Finding the Fourth Proportional to 20,814,101.28, 31,198,376.88 and 10,717,328.16

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Solution

The fourth proportional to 20,814,101.28, 31,198,376.88 and 10,717,328.16 is: 16,064,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,814,101.28 : 31,198,376.88 = 10,717,328.16 : x
  2. Step 2: Convert to fraction form
    20,814,101.28/31,198,376.88 = 10,717,328.16/x
  3. Step 3: Cross multiply
    20,814,101.28x = 31,198,376.88 × 10,717,328.16
  4. Step 4: Simplify right side
    20,814,101.28x = 334,363,243,082,316.94
  5. Step 5: Solve for x
    x = 334,363,243,082,316.94/20,814,101.28
  6. Step 6: Final answer
    x = 16,064,265.21

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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.