Home / 147,204,656.64-203,143,815.54-81,127,571.76

Finding the Fourth Proportional to 147,204,656.64, 203,143,815.54 and 81,127,571.76

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Solution

The fourth proportional to 147,204,656.64, 203,143,815.54 and 81,127,571.76 is: 111,956,814.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,204,656.64 : 203,143,815.54 = 81,127,571.76 : x
  2. Step 2: Convert to fraction form
    147,204,656.64/203,143,815.54 = 81,127,571.76/x
  3. Step 3: Cross multiply
    147,204,656.64x = 203,143,815.54 × 81,127,571.76
  4. Step 4: Simplify right side
    147,204,656.64x = 16,480,564,472,821,554
  5. Step 5: Solve for x
    x = 16,480,564,472,821,554/147,204,656.64
  6. Step 6: Final answer
    x = 111,956,814.74

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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.