Home / 128,304,066.90-192,456,100.35-60,153,647.70

Finding the Fourth Proportional to 128,304,066.90, 192,456,100.35 and 60,153,647.70

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Solution

The fourth proportional to 128,304,066.90, 192,456,100.35 and 60,153,647.70 is: 90,230,471.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,066.90 : 192,456,100.35 = 60,153,647.70 : x
  2. Step 2: Convert to fraction form
    128,304,066.90/192,456,100.35 = 60,153,647.70/x
  3. Step 3: Cross multiply
    128,304,066.90x = 192,456,100.35 × 60,153,647.70
  4. Step 4: Simplify right side
    128,304,066.90x = 11,576,936,458,169,746
  5. Step 5: Solve for x
    x = 11,576,936,458,169,746/128,304,066.90
  6. Step 6: Final answer
    x = 90,230,471.55

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1.5x scale

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.