Home / 40,078,697.51-55,308,371.63-21,743,589.35

Finding the Fourth Proportional to 40,078,697.51, 55,308,371.63 and 21,743,589.35

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Solution

The fourth proportional to 40,078,697.51, 55,308,371.63 and 21,743,589.35 is: 30,006,028.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,078,697.51 : 55,308,371.63 = 21,743,589.35 : x
  2. Step 2: Convert to fraction form
    40,078,697.51/55,308,371.63 = 21,743,589.35/x
  3. Step 3: Cross multiply
    40,078,697.51x = 55,308,371.63 × 21,743,589.35
  4. Step 4: Simplify right side
    40,078,697.51x = 1,202,602,520,369,463
  5. Step 5: Solve for x
    x = 1,202,602,520,369,463/40,078,697.51
  6. Step 6: Final answer
    x = 30,006,028.02

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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.