Home / 117,120,866.66-161,626,792.77-64,917,745.28

Finding the Fourth Proportional to 117,120,866.66, 161,626,792.77 and 64,917,745.28

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Solution

The fourth proportional to 117,120,866.66, 161,626,792.77 and 64,917,745.28 is: 89,586,486.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,120,866.66 : 161,626,792.77 = 64,917,745.28 : x
  2. Step 2: Convert to fraction form
    117,120,866.66/161,626,792.77 = 64,917,745.28/x
  3. Step 3: Cross multiply
    117,120,866.66x = 161,626,792.77 × 64,917,745.28
  4. Step 4: Simplify right side
    117,120,866.66x = 10,492,446,963,466,206
  5. Step 5: Solve for x
    x = 10,492,446,963,466,206/117,120,866.66
  6. Step 6: Final answer
    x = 89,586,486.70

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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.