Home / 12,500,680.32-17,249,896.08-11,586,689.28

Finding the Fourth Proportional to 12,500,680.32, 17,249,896.08 and 11,586,689.28

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Solution

The fourth proportional to 12,500,680.32, 17,249,896.08 and 11,586,689.28 is: 15,988,664.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,500,680.32 : 17,249,896.08 = 11,586,689.28 : x
  2. Step 2: Convert to fraction form
    12,500,680.32/17,249,896.08 = 11,586,689.28/x
  3. Step 3: Cross multiply
    12,500,680.32x = 17,249,896.08 × 11,586,689.28
  4. Step 4: Simplify right side
    12,500,680.32x = 199,869,185,991,250
  5. Step 5: Solve for x
    x = 199,869,185,991,250/12,500,680.32
  6. Step 6: Final answer
    x = 15,988,664.69

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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.