Home / 31,670,480.40-47,505,720.60-28,017,315.60

Finding the Fourth Proportional to 31,670,480.40, 47,505,720.60 and 28,017,315.60

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Solution

The fourth proportional to 31,670,480.40, 47,505,720.60 and 28,017,315.60 is: 42,025,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,670,480.40 : 47,505,720.60 = 28,017,315.60 : x
  2. Step 2: Convert to fraction form
    31,670,480.40/47,505,720.60 = 28,017,315.60/x
  3. Step 3: Cross multiply
    31,670,480.40x = 47,505,720.60 × 28,017,315.60
  4. Step 4: Simplify right side
    31,670,480.40x = 1,330,982,766,855,621.50
  5. Step 5: Solve for x
    x = 1,330,982,766,855,621.50/31,670,480.40
  6. Step 6: Final answer
    x = 42,025,973.40

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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.