Home / 28,163,220.60-42,188,843.70-15,360,814.20

Finding the Fourth Proportional to 28,163,220.60, 42,188,843.70 and 15,360,814.20

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Solution

The fourth proportional to 28,163,220.60, 42,188,843.70 and 15,360,814.20 is: 23,010,684.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,163,220.60 : 42,188,843.70 = 15,360,814.20 : x
  2. Step 2: Convert to fraction form
    28,163,220.60/42,188,843.70 = 15,360,814.20/x
  3. Step 3: Cross multiply
    28,163,220.60x = 42,188,843.70 × 15,360,814.20
  4. Step 4: Simplify right side
    28,163,220.60x = 648,054,989,388,540.50
  5. Step 5: Solve for x
    x = 648,054,989,388,540.50/28,163,220.60
  6. Step 6: Final answer
    x = 23,010,684.70

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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.