Home / 126,109,946.63-189,219,531.04-67,749,531.77

Finding the Fourth Proportional to 126,109,946.63, 189,219,531.04 and 67,749,531.77

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Solution

The fourth proportional to 126,109,946.63, 189,219,531.04 and 67,749,531.77 is: 101,653,636.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,109,946.63 : 189,219,531.04 = 67,749,531.77 : x
  2. Step 2: Convert to fraction form
    126,109,946.63/189,219,531.04 = 67,749,531.77/x
  3. Step 3: Cross multiply
    126,109,946.63x = 189,219,531.04 × 67,749,531.77
  4. Step 4: Simplify right side
    126,109,946.63x = 12,819,534,630,002,654
  5. Step 5: Solve for x
    x = 12,819,534,630,002,654/126,109,946.63
  6. Step 6: Final answer
    x = 101,653,636.15

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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.