Home / 426,758,057.07-640,228,460.51-127,650,476.76

Finding the Fourth Proportional to 426,758,057.07, 640,228,460.51 and 127,650,476.76

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Solution

The fourth proportional to 426,758,057.07, 640,228,460.51 and 127,650,476.76 is: 191,503,046.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,758,057.07 : 640,228,460.51 = 127,650,476.76 : x
  2. Step 2: Convert to fraction form
    426,758,057.07/640,228,460.51 = 127,650,476.76/x
  3. Step 3: Cross multiply
    426,758,057.07x = 640,228,460.51 × 127,650,476.76
  4. Step 4: Simplify right side
    426,758,057.07x = 81,725,468,215,582,928
  5. Step 5: Solve for x
    x = 81,725,468,215,582,928/426,758,057.07
  6. Step 6: Final answer
    x = 191,503,046.90

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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.