Home / 28,243,905.20-42,365,857.80-8,046,522.80

Finding the Fourth Proportional to 28,243,905.20, 42,365,857.80 and 8,046,522.80

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Solution

The fourth proportional to 28,243,905.20, 42,365,857.80 and 8,046,522.80 is: 12,069,784.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,243,905.20 : 42,365,857.80 = 8,046,522.80 : x
  2. Step 2: Convert to fraction form
    28,243,905.20/42,365,857.80 = 8,046,522.80/x
  3. Step 3: Cross multiply
    28,243,905.20x = 42,365,857.80 × 8,046,522.80
  4. Step 4: Simplify right side
    28,243,905.20x = 340,897,840,729,257.81
  5. Step 5: Solve for x
    x = 340,897,840,729,257.81/28,243,905.20
  6. Step 6: Final answer
    x = 12,069,784.20

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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.