Home / 127,467,642.81-191,190,511.78-77,599,521.71

Finding the Fourth Proportional to 127,467,642.81, 191,190,511.78 and 77,599,521.71

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Solution

The fourth proportional to 127,467,642.81, 191,190,511.78 and 77,599,521.71 is: 116,392,614.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,467,642.81 : 191,190,511.78 = 77,599,521.71 : x
  2. Step 2: Convert to fraction form
    127,467,642.81/191,190,511.78 = 77,599,521.71/x
  3. Step 3: Cross multiply
    127,467,642.81x = 191,190,511.78 × 77,599,521.71
  4. Step 4: Simplify right side
    127,467,642.81x = 14,836,292,269,873,352
  5. Step 5: Solve for x
    x = 14,836,292,269,873,352/127,467,642.81
  6. Step 6: Final answer
    x = 116,392,614.96

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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.