Home / 228,280,574.68-315,023,220.24-138,940,225

Finding the Fourth Proportional to 228,280,574.68, 315,023,220.24 and 138,940,225

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Solution

The fourth proportional to 228,280,574.68, 315,023,220.24 and 138,940,225 is: 191,735,092.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,280,574.68 : 315,023,220.24 = 138,940,225 : x
  2. Step 2: Convert to fraction form
    228,280,574.68/315,023,220.24 = 138,940,225/x
  3. Step 3: Cross multiply
    228,280,574.68x = 315,023,220.24 × 138,940,225
  4. Step 4: Simplify right side
    228,280,574.68x = 43,769,397,100,370,152
  5. Step 5: Solve for x
    x = 43,769,397,100,370,152/228,280,574.68
  6. Step 6: Final answer
    x = 191,735,092.49

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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.