Home / 18,889,721.40-28,334,582.10-15,110,585.40

Finding the Fourth Proportional to 18,889,721.40, 28,334,582.10 and 15,110,585.40

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Solution

The fourth proportional to 18,889,721.40, 28,334,582.10 and 15,110,585.40 is: 22,665,878.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,889,721.40 : 28,334,582.10 = 15,110,585.40 : x
  2. Step 2: Convert to fraction form
    18,889,721.40/28,334,582.10 = 15,110,585.40/x
  3. Step 3: Cross multiply
    18,889,721.40x = 28,334,582.10 × 15,110,585.40
  4. Step 4: Simplify right side
    18,889,721.40x = 428,152,122,595,361.38
  5. Step 5: Solve for x
    x = 428,152,122,595,361.38/18,889,721.40
  6. Step 6: Final answer
    x = 22,665,878.10

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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.