Home / 128,463,097.77-177,278,632.29-69,725,759.85

Finding the Fourth Proportional to 128,463,097.77, 177,278,632.29 and 69,725,759.85

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Solution

The fourth proportional to 128,463,097.77, 177,278,632.29 and 69,725,759.85 is: 96,221,308.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,463,097.77 : 177,278,632.29 = 69,725,759.85 : x
  2. Step 2: Convert to fraction form
    128,463,097.77/177,278,632.29 = 69,725,759.85/x
  3. Step 3: Cross multiply
    128,463,097.77x = 177,278,632.29 × 69,725,759.85
  4. Step 4: Simplify right side
    128,463,097.77x = 12,360,887,341,588,994
  5. Step 5: Solve for x
    x = 12,360,887,341,588,994/128,463,097.77
  6. Step 6: Final answer
    x = 96,221,308.35

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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.