Home / 35,792,721.88-53,688,739.77-21,209,143.64

Finding the Fourth Proportional to 35,792,721.88, 53,688,739.77 and 21,209,143.64

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Solution

The fourth proportional to 35,792,721.88, 53,688,739.77 and 21,209,143.64 is: 31,813,512.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,792,721.88 : 53,688,739.77 = 21,209,143.64 : x
  2. Step 2: Convert to fraction form
    35,792,721.88/53,688,739.77 = 21,209,143.64/x
  3. Step 3: Cross multiply
    35,792,721.88x = 53,688,739.77 × 21,209,143.64
  4. Step 4: Simplify right side
    35,792,721.88x = 1,138,692,193,258,021.25
  5. Step 5: Solve for x
    x = 1,138,692,193,258,021.25/35,792,721.88
  6. Step 6: Final answer
    x = 31,813,512.18

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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.