Home / 109,189,573.92-163,865,709.54-80,118,533.25

Finding the Fourth Proportional to 109,189,573.92, 163,865,709.54 and 80,118,533.25

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Solution

The fourth proportional to 109,189,573.92, 163,865,709.54 and 80,118,533.25 is: 120,237,489.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,189,573.92 : 163,865,709.54 = 80,118,533.25 : x
  2. Step 2: Convert to fraction form
    109,189,573.92/163,865,709.54 = 80,118,533.25/x
  3. Step 3: Cross multiply
    109,189,573.92x = 163,865,709.54 × 80,118,533.25
  4. Step 4: Simplify right side
    109,189,573.92x = 13,128,680,298,315,332
  5. Step 5: Solve for x
    x = 13,128,680,298,315,332/109,189,573.92
  6. Step 6: Final answer
    x = 120,237,489.96

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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.