Home / 66,128,839,440.80-99,193,259,161.20-39,680,934,058.40

Finding the Fourth Proportional to 66,128,839,440.80, 99,193,259,161.20 and 39,680,934,058.40

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Solution

The fourth proportional to 66,128,839,440.80, 99,193,259,161.20 and 39,680,934,058.40 is: 59,521,401,087.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,128,839,440.80 : 99,193,259,161.20 = 39,680,934,058.40 : x
  2. Step 2: Convert to fraction form
    66,128,839,440.80/99,193,259,161.20 = 39,680,934,058.40/x
  3. Step 3: Cross multiply
    66,128,839,440.80x = 99,193,259,161.20 × 39,680,934,058.40
  4. Step 4: Simplify right side
    66,128,839,440.80x = 3,936,081,175,813,359,140,864
  5. Step 5: Solve for x
    x = 3,936,081,175,813,359,140,864/66,128,839,440.80
  6. Step 6: Final answer
    x = 59,521,401,087.60

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Double scale
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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.