Home / 156,035,320.36-215,326,103.18-86,419,206.56

Finding the Fourth Proportional to 156,035,320.36, 215,326,103.18 and 86,419,206.56

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Solution

The fourth proportional to 156,035,320.36, 215,326,103.18 and 86,419,206.56 is: 119,257,043.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,035,320.36 : 215,326,103.18 = 86,419,206.56 : x
  2. Step 2: Convert to fraction form
    156,035,320.36/215,326,103.18 = 86,419,206.56/x
  3. Step 3: Cross multiply
    156,035,320.36x = 215,326,103.18 × 86,419,206.56
  4. Step 4: Simplify right side
    156,035,320.36x = 18,608,310,988,578,512
  5. Step 5: Solve for x
    x = 18,608,310,988,578,512/156,035,320.36
  6. Step 6: Final answer
    x = 119,257,043.51

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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.