Home / 142,017,257,332.67-195,981,392,977.39-76,911,156,994.23

Finding the Fourth Proportional to 142,017,257,332.67, 195,981,392,977.39 and 76,911,156,994.23

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Solution

The fourth proportional to 142,017,257,332.67, 195,981,392,977.39 and 76,911,156,994.23 is: 106,136,084,912.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,017,257,332.67 : 195,981,392,977.39 = 76,911,156,994.23 : x
  2. Step 2: Convert to fraction form
    142,017,257,332.67/195,981,392,977.39 = 76,911,156,994.23/x
  3. Step 3: Cross multiply
    142,017,257,332.67x = 195,981,392,977.39 × 76,911,156,994.23
  4. Step 4: Simplify right side
    142,017,257,332.67x = 15,073,155,683,231,926,845,440
  5. Step 5: Solve for x
    x = 15,073,155,683,231,926,845,440/142,017,257,332.67
  6. Step 6: Final answer
    x = 106,136,084,912.02

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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.