Home / 13,721,012.82-18,934,866.18-7,525,931.13

Finding the Fourth Proportional to 13,721,012.82, 18,934,866.18 and 7,525,931.13

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Solution

The fourth proportional to 13,721,012.82, 18,934,866.18 and 7,525,931.13 is: 10,385,712.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,721,012.82 : 18,934,866.18 = 7,525,931.13 : x
  2. Step 2: Convert to fraction form
    13,721,012.82/18,934,866.18 = 7,525,931.13/x
  3. Step 3: Cross multiply
    13,721,012.82x = 18,934,866.18 × 7,525,931.13
  4. Step 4: Simplify right side
    13,721,012.82x = 142,502,498,826,446.19
  5. Step 5: Solve for x
    x = 142,502,498,826,446.19/13,721,012.82
  6. Step 6: Final answer
    x = 10,385,712.83

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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.