Home / 21,265,619.21-31,896,885.84-8,309,333.69

Finding the Fourth Proportional to 21,265,619.21, 31,896,885.84 and 8,309,333.69

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Solution

The fourth proportional to 21,265,619.21, 31,896,885.84 and 8,309,333.69 is: 12,463,397.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265,619.21 : 31,896,885.84 = 8,309,333.69 : x
  2. Step 2: Convert to fraction form
    21,265,619.21/31,896,885.84 = 8,309,333.69/x
  3. Step 3: Cross multiply
    21,265,619.21x = 31,896,885.84 × 8,309,333.69
  4. Step 4: Simplify right side
    21,265,619.21x = 265,041,868,116,395.97
  5. Step 5: Solve for x
    x = 265,041,868,116,395.97/21,265,619.21
  6. Step 6: Final answer
    x = 12,463,397.63

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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.