Home / 118,664,026.32-177,968,115-66,871,212.24

Finding the Fourth Proportional to 118,664,026.32, 177,968,115 and 66,871,212.24

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Solution

The fourth proportional to 118,664,026.32, 177,968,115 and 66,871,212.24 is: 100,291,081.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,664,026.32 : 177,968,115 = 66,871,212.24 : x
  2. Step 2: Convert to fraction form
    118,664,026.32/177,968,115 = 66,871,212.24/x
  3. Step 3: Cross multiply
    118,664,026.32x = 177,968,115 × 66,871,212.24
  4. Step 4: Simplify right side
    118,664,026.32x = 11,900,943,590,117,728
  5. Step 5: Solve for x
    x = 11,900,943,590,117,728/118,664,026.32
  6. Step 6: Final answer
    x = 100,291,081.97

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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.