Home / 128,676,844.90-177,573,213.39-73,683,330.22

Finding the Fourth Proportional to 128,676,844.90, 177,573,213.39 and 73,683,330.22

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Solution

The fourth proportional to 128,676,844.90, 177,573,213.39 and 73,683,330.22 is: 101,682,518.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,676,844.90 : 177,573,213.39 = 73,683,330.22 : x
  2. Step 2: Convert to fraction form
    128,676,844.90/177,573,213.39 = 73,683,330.22/x
  3. Step 3: Cross multiply
    128,676,844.90x = 177,573,213.39 × 73,683,330.22
  4. Step 4: Simplify right side
    128,676,844.90x = 13,084,185,720,441,894
  5. Step 5: Solve for x
    x = 13,084,185,720,441,894/128,676,844.90
  6. Step 6: Final answer
    x = 101,682,518.95

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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.