Home / 147,207,262.77-203,146,023.76-81,127,761.77

Finding the Fourth Proportional to 147,207,262.77, 203,146,023.76 and 81,127,761.77

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Solution

The fourth proportional to 147,207,262.77, 203,146,023.76 and 81,127,761.77 is: 111,956,311.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,207,262.77 : 203,146,023.76 = 81,127,761.77 : x
  2. Step 2: Convert to fraction form
    147,207,262.77/203,146,023.76 = 81,127,761.77/x
  3. Step 3: Cross multiply
    147,207,262.77x = 203,146,023.76 × 81,127,761.77
  4. Step 4: Simplify right side
    147,207,262.77x = 16,480,782,221,285,642
  5. Step 5: Solve for x
    x = 16,480,782,221,285,642/147,207,262.77
  6. Step 6: Final answer
    x = 111,956,311.88

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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.