Home / 138,680,908.26-208,035,128.16-51,265,334.52

Finding the Fourth Proportional to 138,680,908.26, 208,035,128.16 and 51,265,334.52

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Solution

The fourth proportional to 138,680,908.26, 208,035,128.16 and 51,265,334.52 is: 76,903,090.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,680,908.26 : 208,035,128.16 = 51,265,334.52 : x
  2. Step 2: Convert to fraction form
    138,680,908.26/208,035,128.16 = 51,265,334.52/x
  3. Step 3: Cross multiply
    138,680,908.26x = 208,035,128.16 × 51,265,334.52
  4. Step 4: Simplify right side
    138,680,908.26x = 10,664,990,437,033,472
  5. Step 5: Solve for x
    x = 10,664,990,437,033,472/138,680,908.26
  6. Step 6: Final answer
    x = 76,903,090.49

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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.