Home / 119,717,469.66-165,255,032.61-78,467,019.24

Finding the Fourth Proportional to 119,717,469.66, 165,255,032.61 and 78,467,019.24

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Solution

The fourth proportional to 119,717,469.66, 165,255,032.61 and 78,467,019.24 is: 108,313,931.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,717,469.66 : 165,255,032.61 = 78,467,019.24 : x
  2. Step 2: Convert to fraction form
    119,717,469.66/165,255,032.61 = 78,467,019.24/x
  3. Step 3: Cross multiply
    119,717,469.66x = 165,255,032.61 × 78,467,019.24
  4. Step 4: Simplify right side
    119,717,469.66x = 12,967,069,823,315,698
  5. Step 5: Solve for x
    x = 12,967,069,823,315,698/119,717,469.66
  6. Step 6: Final answer
    x = 108,313,931.63

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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.