Home / 21,957,954.39-30,301,607.12-12,168,378.63

Finding the Fourth Proportional to 21,957,954.39, 30,301,607.12 and 12,168,378.63

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Solution

The fourth proportional to 21,957,954.39, 30,301,607.12 and 12,168,378.63 is: 16,792,157.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,957,954.39 : 30,301,607.12 = 12,168,378.63 : x
  2. Step 2: Convert to fraction form
    21,957,954.39/30,301,607.12 = 12,168,378.63/x
  3. Step 3: Cross multiply
    21,957,954.39x = 30,301,607.12 × 12,168,378.63
  4. Step 4: Simplify right side
    21,957,954.39x = 368,721,428,472,821.94
  5. Step 5: Solve for x
    x = 368,721,428,472,821.94/21,957,954.39
  6. Step 6: Final answer
    x = 16,792,157.50

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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.