Home / 130,369,431.42-179,925,456.87-78,187,175.10

Finding the Fourth Proportional to 130,369,431.42, 179,925,456.87 and 78,187,175.10

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Solution

The fourth proportional to 130,369,431.42, 179,925,456.87 and 78,187,175.10 is: 107,907,682.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,369,431.42 : 179,925,456.87 = 78,187,175.10 : x
  2. Step 2: Convert to fraction form
    130,369,431.42/179,925,456.87 = 78,187,175.10/x
  3. Step 3: Cross multiply
    130,369,431.42x = 179,925,456.87 × 78,187,175.10
  4. Step 4: Simplify right side
    130,369,431.42x = 14,067,863,201,242,188
  5. Step 5: Solve for x
    x = 14,067,863,201,242,188/130,369,431.42
  6. Step 6: Final answer
    x = 107,907,682.41

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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.