Home / 55,519,395.78-76,619,160.88-30,739,583.16

Finding the Fourth Proportional to 55,519,395.78, 76,619,160.88 and 30,739,583.16

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Solution

The fourth proportional to 55,519,395.78, 76,619,160.88 and 30,739,583.16 is: 42,421,950.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,519,395.78 : 76,619,160.88 = 30,739,583.16 : x
  2. Step 2: Convert to fraction form
    55,519,395.78/76,619,160.88 = 30,739,583.16/x
  3. Step 3: Cross multiply
    55,519,395.78x = 76,619,160.88 × 30,739,583.16
  4. Step 4: Simplify right side
    55,519,395.78x = 2,355,241,067,520,178.50
  5. Step 5: Solve for x
    x = 2,355,241,067,520,178.50/55,519,395.78
  6. Step 6: Final answer
    x = 42,421,950.64

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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.