Home / 126,110,031.87-189,219,658.88-67,749,617.02

Finding the Fourth Proportional to 126,110,031.87, 189,219,658.88 and 67,749,617.02

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Solution

The fourth proportional to 126,110,031.87, 189,219,658.88 and 67,749,617.02 is: 101,653,764.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,110,031.87 : 189,219,658.88 = 67,749,617.02 : x
  2. Step 2: Convert to fraction form
    126,110,031.87/189,219,658.88 = 67,749,617.02/x
  3. Step 3: Cross multiply
    126,110,031.87x = 189,219,658.88 × 67,749,617.02
  4. Step 4: Simplify right side
    126,110,031.87x = 12,819,559,421,775,042
  5. Step 5: Solve for x
    x = 12,819,559,421,775,042/126,110,031.87
  6. Step 6: Final answer
    x = 101,653,764.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.