Home / 12,428,637.48-18,642,957.66-3,792,783.20

Finding the Fourth Proportional to 12,428,637.48, 18,642,957.66 and 3,792,783.20

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Solution

The fourth proportional to 12,428,637.48, 18,642,957.66 and 3,792,783.20 is: 5,689,175.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428,637.48 : 18,642,957.66 = 3,792,783.20 : x
  2. Step 2: Convert to fraction form
    12,428,637.48/18,642,957.66 = 3,792,783.20/x
  3. Step 3: Cross multiply
    12,428,637.48x = 18,642,957.66 × 3,792,783.20
  4. Step 4: Simplify right side
    12,428,637.48x = 70,708,696,517,944.52
  5. Step 5: Solve for x
    x = 70,708,696,517,944.52/12,428,637.48
  6. Step 6: Final answer
    x = 5,689,175.23

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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.