Home / 12,948,457.15-17,868,871.83-7,147,240.39

Finding the Fourth Proportional to 12,948,457.15, 17,868,871.83 and 7,147,240.39

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Solution

The fourth proportional to 12,948,457.15, 17,868,871.83 and 7,147,240.39 is: 9,863,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,457.15 : 17,868,871.83 = 7,147,240.39 : x
  2. Step 2: Convert to fraction form
    12,948,457.15/17,868,871.83 = 7,147,240.39/x
  3. Step 3: Cross multiply
    12,948,457.15x = 17,868,871.83 × 7,147,240.39
  4. Step 4: Simplify right side
    12,948,457.15x = 127,713,122,467,109.19
  5. Step 5: Solve for x
    x = 127,713,122,467,109.19/12,948,457.15
  6. Step 6: Final answer
    x = 9,863,192.27

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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.