Home / 128,008,102.25-176,594,887.68-75,057,782.60

Finding the Fourth Proportional to 128,008,102.25, 176,594,887.68 and 75,057,782.60

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Solution

The fourth proportional to 128,008,102.25, 176,594,887.68 and 75,057,782.60 is: 103,546,732.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,008,102.25 : 176,594,887.68 = 75,057,782.60 : x
  2. Step 2: Convert to fraction form
    128,008,102.25/176,594,887.68 = 75,057,782.60/x
  3. Step 3: Cross multiply
    128,008,102.25x = 176,594,887.68 × 75,057,782.60
  4. Step 4: Simplify right side
    128,008,102.25x = 13,254,820,687,756,858
  5. Step 5: Solve for x
    x = 13,254,820,687,756,858/128,008,102.25
  6. Step 6: Final answer
    x = 103,546,732.24

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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.