Home / 71,216,435.20-106,824,652.80-20,097,788.80

Finding the Fourth Proportional to 71,216,435.20, 106,824,652.80 and 20,097,788.80

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Solution

The fourth proportional to 71,216,435.20, 106,824,652.80 and 20,097,788.80 is: 30,146,683.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,216,435.20 : 106,824,652.80 = 20,097,788.80 : x
  2. Step 2: Convert to fraction form
    71,216,435.20/106,824,652.80 = 20,097,788.80/x
  3. Step 3: Cross multiply
    71,216,435.20x = 106,824,652.80 × 20,097,788.80
  4. Step 4: Simplify right side
    71,216,435.20x = 2,146,939,310,607,728.75
  5. Step 5: Solve for x
    x = 2,146,939,310,607,728.75/71,216,435.20
  6. Step 6: Final answer
    x = 30,146,683.20

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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.