Home / 72,621,821.20-108,806,760.60-47,049,667.60

Finding the Fourth Proportional to 72,621,821.20, 108,806,760.60 and 47,049,667.60

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Solution

The fourth proportional to 72,621,821.20, 108,806,760.60 and 47,049,667.60 is: 70,492,888.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,621,821.20 : 108,806,760.60 = 47,049,667.60 : x
  2. Step 2: Convert to fraction form
    72,621,821.20/108,806,760.60 = 47,049,667.60/x
  3. Step 3: Cross multiply
    72,621,821.20x = 108,806,760.60 × 47,049,667.60
  4. Step 4: Simplify right side
    72,621,821.20x = 5,119,321,918,862,776
  5. Step 5: Solve for x
    x = 5,119,321,918,862,776/72,621,821.20
  6. Step 6: Final answer
    x = 70,492,888.15

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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.