Home / 72,685,280.70-109,027,921.05-64,465,659.90

Finding the Fourth Proportional to 72,685,280.70, 109,027,921.05 and 64,465,659.90

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Solution

The fourth proportional to 72,685,280.70, 109,027,921.05 and 64,465,659.90 is: 96,698,489.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,685,280.70 : 109,027,921.05 = 64,465,659.90 : x
  2. Step 2: Convert to fraction form
    72,685,280.70/109,027,921.05 = 64,465,659.90/x
  3. Step 3: Cross multiply
    72,685,280.70x = 109,027,921.05 × 64,465,659.90
  4. Step 4: Simplify right side
    72,685,280.70x = 7,028,556,878,013,351
  5. Step 5: Solve for x
    x = 7,028,556,878,013,351/72,685,280.70
  6. Step 6: Final answer
    x = 96,698,489.85

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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.