Home / 71,284,809.96-98,356,176.78-40,344,978.36

Finding the Fourth Proportional to 71,284,809.96, 98,356,176.78 and 40,344,978.36

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Solution

The fourth proportional to 71,284,809.96, 98,356,176.78 and 40,344,978.36 is: 55,666,527.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,284,809.96 : 98,356,176.78 = 40,344,978.36 : x
  2. Step 2: Convert to fraction form
    71,284,809.96/98,356,176.78 = 40,344,978.36/x
  3. Step 3: Cross multiply
    71,284,809.96x = 98,356,176.78 × 40,344,978.36
  4. Step 4: Simplify right side
    71,284,809.96x = 3,968,177,823,761,434.50
  5. Step 5: Solve for x
    x = 3,968,177,823,761,434.50/71,284,809.96
  6. Step 6: Final answer
    x = 55,666,527.36

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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.