Home / 101,712,406.72-140,362,131.12-55,302,660.64

Finding the Fourth Proportional to 101,712,406.72, 140,362,131.12 and 55,302,660.64

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Solution

The fourth proportional to 101,712,406.72, 140,362,131.12 and 55,302,660.64 is: 76,317,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,712,406.72 : 140,362,131.12 = 55,302,660.64 : x
  2. Step 2: Convert to fraction form
    101,712,406.72/140,362,131.12 = 55,302,660.64/x
  3. Step 3: Cross multiply
    101,712,406.72x = 140,362,131.12 × 55,302,660.64
  4. Step 4: Simplify right side
    101,712,406.72x = 7,762,399,304,036,543
  5. Step 5: Solve for x
    x = 7,762,399,304,036,543/101,712,406.72
  6. Step 6: Final answer
    x = 76,317,133.32

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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.