Home / 12,153,935.28-18,243,748.97-11,879,480.45

Finding the Fourth Proportional to 12,153,935.28, 18,243,748.97 and 11,879,480.45

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Solution

The fourth proportional to 12,153,935.28, 18,243,748.97 and 11,879,480.45 is: 17,831,776.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,153,935.28 : 18,243,748.97 = 11,879,480.45 : x
  2. Step 2: Convert to fraction form
    12,153,935.28/18,243,748.97 = 11,879,480.45/x
  3. Step 3: Cross multiply
    12,153,935.28x = 18,243,748.97 × 11,879,480.45
  4. Step 4: Simplify right side
    12,153,935.28x = 216,726,259,254,582.66
  5. Step 5: Solve for x
    x = 216,726,259,254,582.66/12,153,935.28
  6. Step 6: Final answer
    x = 17,831,776.64

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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.