Home / 130,987,072.22-180,758,992.91-72,248,475.83

Finding the Fourth Proportional to 130,987,072.22, 180,758,992.91 and 72,248,475.83

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Solution

The fourth proportional to 130,987,072.22, 180,758,992.91 and 72,248,475.83 is: 99,701,149.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,987,072.22 : 180,758,992.91 = 72,248,475.83 : x
  2. Step 2: Convert to fraction form
    130,987,072.22/180,758,992.91 = 72,248,475.83/x
  3. Step 3: Cross multiply
    130,987,072.22x = 180,758,992.91 × 72,248,475.83
  4. Step 4: Simplify right side
    130,987,072.22x = 13,059,561,729,048,240
  5. Step 5: Solve for x
    x = 13,059,561,729,048,240/130,987,072.22
  6. Step 6: Final answer
    x = 99,701,149.95

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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.