Home / 13,720,985.82-18,934,828.92-7,525,903.86

Finding the Fourth Proportional to 13,720,985.82, 18,934,828.92 and 7,525,903.86

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Solution

The fourth proportional to 13,720,985.82, 18,934,828.92 and 7,525,903.86 is: 10,385,675.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,720,985.82 : 18,934,828.92 = 7,525,903.86 : x
  2. Step 2: Convert to fraction form
    13,720,985.82/18,934,828.92 = 7,525,903.86/x
  3. Step 3: Cross multiply
    13,720,985.82x = 18,934,828.92 × 7,525,903.86
  4. Step 4: Simplify right side
    13,720,985.82x = 142,501,702,057,467.66
  5. Step 5: Solve for x
    x = 142,501,702,057,467.66/13,720,985.82
  6. Step 6: Final answer
    x = 10,385,675.19

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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.