Home / 90,697,910.09-125,161,920.63-51,005,429.06

Finding the Fourth Proportional to 90,697,910.09, 125,161,920.63 and 51,005,429.06

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Solution

The fourth proportional to 90,697,910.09, 125,161,920.63 and 51,005,429.06 is: 70,386,819.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,697,910.09 : 125,161,920.63 = 51,005,429.06 : x
  2. Step 2: Convert to fraction form
    90,697,910.09/125,161,920.63 = 51,005,429.06/x
  3. Step 3: Cross multiply
    90,697,910.09x = 125,161,920.63 × 51,005,429.06
  4. Step 4: Simplify right side
    90,697,910.09x = 6,383,937,463,081,006
  5. Step 5: Solve for x
    x = 6,383,937,463,081,006/90,697,910.09
  6. Step 6: Final answer
    x = 70,386,819.91

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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.