Home / 72,583,405.20-108,749,136.60-47,011,251.60

Finding the Fourth Proportional to 72,583,405.20, 108,749,136.60 and 47,011,251.60

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Solution

The fourth proportional to 72,583,405.20, 108,749,136.60 and 47,011,251.60 is: 70,435,287.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,583,405.20 : 108,749,136.60 = 47,011,251.60 : x
  2. Step 2: Convert to fraction form
    72,583,405.20/108,749,136.60 = 47,011,251.60/x
  3. Step 3: Cross multiply
    72,583,405.20x = 108,749,136.60 × 47,011,251.60
  4. Step 4: Simplify right side
    72,583,405.20x = 5,112,433,021,985,368
  5. Step 5: Solve for x
    x = 5,112,433,021,985,368/72,583,405.20
  6. Step 6: Final answer
    x = 70,435,287.62

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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.