Home / 110,855,712.80-166,283,569.20-90,700,320.80

Finding the Fourth Proportional to 110,855,712.80, 166,283,569.20 and 90,700,320.80

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Solution

The fourth proportional to 110,855,712.80, 166,283,569.20 and 90,700,320.80 is: 136,050,481.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,855,712.80 : 166,283,569.20 = 90,700,320.80 : x
  2. Step 2: Convert to fraction form
    110,855,712.80/166,283,569.20 = 90,700,320.80/x
  3. Step 3: Cross multiply
    110,855,712.80x = 166,283,569.20 × 90,700,320.80
  4. Step 4: Simplify right side
    110,855,712.80x = 15,081,973,070,208,998
  5. Step 5: Solve for x
    x = 15,081,973,070,208,998/110,855,712.80
  6. Step 6: Final answer
    x = 136,050,481.20

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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.