Home / 128,305,456.40-192,458,184.60-124,526,320.40

Finding the Fourth Proportional to 128,305,456.40, 192,458,184.60 and 124,526,320.40

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Solution

The fourth proportional to 128,305,456.40, 192,458,184.60 and 124,526,320.40 is: 186,789,480.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,305,456.40 : 192,458,184.60 = 124,526,320.40 : x
  2. Step 2: Convert to fraction form
    128,305,456.40/192,458,184.60 = 124,526,320.40/x
  3. Step 3: Cross multiply
    128,305,456.40x = 192,458,184.60 × 124,526,320.40
  4. Step 4: Simplify right side
    128,305,456.40x = 23,966,109,559,101,948
  5. Step 5: Solve for x
    x = 23,966,109,559,101,948/128,305,456.40
  6. Step 6: Final answer
    x = 186,789,480.60

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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.