Home / 12,590,139.81-17,375,537.58-7,157,618.85

Finding the Fourth Proportional to 12,590,139.81, 17,375,537.58 and 7,157,618.85

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Solution

The fourth proportional to 12,590,139.81, 17,375,537.58 and 7,157,618.85 is: 9,878,164.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590,139.81 : 17,375,537.58 = 7,157,618.85 : x
  2. Step 2: Convert to fraction form
    12,590,139.81/17,375,537.58 = 7,157,618.85/x
  3. Step 3: Cross multiply
    12,590,139.81x = 17,375,537.58 × 7,157,618.85
  4. Step 4: Simplify right side
    12,590,139.81x = 124,367,475,311,491.36
  5. Step 5: Solve for x
    x = 124,367,475,311,491.36/12,590,139.81
  6. Step 6: Final answer
    x = 9,878,164.75

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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.