Home / 72,581,234.20-108,745,880.10-47,009,080.60

Finding the Fourth Proportional to 72,581,234.20, 108,745,880.10 and 47,009,080.60

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Solution

The fourth proportional to 72,581,234.20, 108,745,880.10 and 47,009,080.60 is: 70,432,032.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,581,234.20 : 108,745,880.10 = 47,009,080.60 : x
  2. Step 2: Convert to fraction form
    72,581,234.20/108,745,880.10 = 47,009,080.60/x
  3. Step 3: Cross multiply
    72,581,234.20x = 108,745,880.10 × 47,009,080.60
  4. Step 4: Simplify right side
    72,581,234.20x = 5,112,043,842,538,836
  5. Step 5: Solve for x
    x = 5,112,043,842,538,836/72,581,234.20
  6. Step 6: Final answer
    x = 70,432,032.45

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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.