Home / 72,440,611.20-108,666,165.60-43,624,699.20

Finding the Fourth Proportional to 72,440,611.20, 108,666,165.60 and 43,624,699.20

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Solution

The fourth proportional to 72,440,611.20, 108,666,165.60 and 43,624,699.20 is: 65,440,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,440,611.20 : 108,666,165.60 = 43,624,699.20 : x
  2. Step 2: Convert to fraction form
    72,440,611.20/108,666,165.60 = 43,624,699.20/x
  3. Step 3: Cross multiply
    72,440,611.20x = 108,666,165.60 × 43,624,699.20
  4. Step 4: Simplify right side
    72,440,611.20x = 4,740,528,787,517,388
  5. Step 5: Solve for x
    x = 4,740,528,787,517,388/72,440,611.20
  6. Step 6: Final answer
    x = 65,440,209.70

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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.