Home / 128,460,784.25-177,276,077.07-69,723,470.83

Finding the Fourth Proportional to 128,460,784.25, 177,276,077.07 and 69,723,470.83

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Solution

The fourth proportional to 128,460,784.25, 177,276,077.07 and 69,723,470.83 is: 96,218,495.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,460,784.25 : 177,276,077.07 = 69,723,470.83 : x
  2. Step 2: Convert to fraction form
    128,460,784.25/177,276,077.07 = 69,723,470.83/x
  3. Step 3: Cross multiply
    128,460,784.25x = 177,276,077.07 × 69,723,470.83
  4. Step 4: Simplify right side
    128,460,784.25x = 12,360,303,388,446,976
  5. Step 5: Solve for x
    x = 12,360,303,388,446,976/128,460,784.25
  6. Step 6: Final answer
    x = 96,218,495.48

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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.