Home / 31,984,911.20-47,977,366.80-18,380,021.60

Finding the Fourth Proportional to 31,984,911.20, 47,977,366.80 and 18,380,021.60

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Solution

The fourth proportional to 31,984,911.20, 47,977,366.80 and 18,380,021.60 is: 27,570,032.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,984,911.20 : 47,977,366.80 = 18,380,021.60 : x
  2. Step 2: Convert to fraction form
    31,984,911.20/47,977,366.80 = 18,380,021.60/x
  3. Step 3: Cross multiply
    31,984,911.20x = 47,977,366.80 × 18,380,021.60
  4. Step 4: Simplify right side
    31,984,911.20x = 881,825,038,095,122.88
  5. Step 5: Solve for x
    x = 881,825,038,095,122.88/31,984,911.20
  6. Step 6: Final answer
    x = 27,570,032.40

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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.