Home / 79,840,809.81-110,153,254.73-65,131,047.81

Finding the Fourth Proportional to 79,840,809.81, 110,153,254.73 and 65,131,047.81

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Solution

The fourth proportional to 79,840,809.81, 110,153,254.73 and 65,131,047.81 is: 89,858,769.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,840,809.81 : 110,153,254.73 = 65,131,047.81 : x
  2. Step 2: Convert to fraction form
    79,840,809.81/110,153,254.73 = 65,131,047.81/x
  3. Step 3: Cross multiply
    79,840,809.81x = 110,153,254.73 × 65,131,047.81
  4. Step 4: Simplify right side
    79,840,809.81x = 7,174,396,899,921,083
  5. Step 5: Solve for x
    x = 7,174,396,899,921,083/79,840,809.81
  6. Step 6: Final answer
    x = 89,858,769.18

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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.