Home / 148,492,650.54-204,193,017.79-128,879,383.03

Finding the Fourth Proportional to 148,492,650.54, 204,193,017.79 and 128,879,383.03

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Solution

The fourth proportional to 148,492,650.54, 204,193,017.79 and 128,879,383.03 is: 177,222,711.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,492,650.54 : 204,193,017.79 = 128,879,383.03 : x
  2. Step 2: Convert to fraction form
    148,492,650.54/204,193,017.79 = 128,879,383.03/x
  3. Step 3: Cross multiply
    148,492,650.54x = 204,193,017.79 × 128,879,383.03
  4. Step 4: Simplify right side
    148,492,650.54x = 26,316,270,151,809,012
  5. Step 5: Solve for x
    x = 26,316,270,151,809,012/148,492,650.54
  6. Step 6: Final answer
    x = 177,222,711.40

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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.