Home / 20,230,838.40-30,346,257.60-18,887,145.60

Finding the Fourth Proportional to 20,230,838.40, 30,346,257.60 and 18,887,145.60

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Solution

The fourth proportional to 20,230,838.40, 30,346,257.60 and 18,887,145.60 is: 28,330,718.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,230,838.40 : 30,346,257.60 = 18,887,145.60 : x
  2. Step 2: Convert to fraction form
    20,230,838.40/30,346,257.60 = 18,887,145.60/x
  3. Step 3: Cross multiply
    20,230,838.40x = 30,346,257.60 × 18,887,145.60
  4. Step 4: Simplify right side
    20,230,838.40x = 573,154,185,706,306.62
  5. Step 5: Solve for x
    x = 573,154,185,706,306.62/20,230,838.40
  6. Step 6: Final answer
    x = 28,330,718.40

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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.