Home / 13,110,728.80-18,092,881.56-7,309,871.68

Finding the Fourth Proportional to 13,110,728.80, 18,092,881.56 and 7,309,871.68

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Solution

The fourth proportional to 13,110,728.80, 18,092,881.56 and 7,309,871.68 is: 10,087,665.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,110,728.80 : 18,092,881.56 = 7,309,871.68 : x
  2. Step 2: Convert to fraction form
    13,110,728.80/18,092,881.56 = 7,309,871.68/x
  3. Step 3: Cross multiply
    13,110,728.80x = 18,092,881.56 × 7,309,871.68
  4. Step 4: Simplify right side
    13,110,728.80x = 132,256,642,525,038.20
  5. Step 5: Solve for x
    x = 132,256,642,525,038.20/13,110,728.80
  6. Step 6: Final answer
    x = 10,087,665.19

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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.