Home / 21,265,619.09-31,896,885.65-8,309,333.57

Finding the Fourth Proportional to 21,265,619.09, 31,896,885.65 and 8,309,333.57

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Solution

The fourth proportional to 21,265,619.09, 31,896,885.65 and 8,309,333.57 is: 12,463,397.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,265,619.09 : 31,896,885.65 = 8,309,333.57 : x
  2. Step 2: Convert to fraction form
    21,265,619.09/31,896,885.65 = 8,309,333.57/x
  3. Step 3: Cross multiply
    21,265,619.09x = 31,896,885.65 × 8,309,333.57
  4. Step 4: Simplify right side
    21,265,619.09x = 265,041,862,571,285.19
  5. Step 5: Solve for x
    x = 265,041,862,571,285.19/21,265,619.09
  6. Step 6: Final answer
    x = 12,463,397.45

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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.