Home / 12,862,457.37-19,279,009.67-5,181,187.07

Finding the Fourth Proportional to 12,862,457.37, 19,279,009.67 and 5,181,187.07

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Solution

The fourth proportional to 12,862,457.37, 19,279,009.67 and 5,181,187.07 is: 7,765,868.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,862,457.37 : 19,279,009.67 = 5,181,187.07 : x
  2. Step 2: Convert to fraction form
    12,862,457.37/19,279,009.67 = 5,181,187.07/x
  3. Step 3: Cross multiply
    12,862,457.37x = 19,279,009.67 × 5,181,187.07
  4. Step 4: Simplify right side
    12,862,457.37x = 99,888,155,646,900.55
  5. Step 5: Solve for x
    x = 99,888,155,646,900.55/12,862,457.37
  6. Step 6: Final answer
    x = 7,765,868.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.