Home / 18,793,984.40-28,190,976.60-13,125,280.40

Finding the Fourth Proportional to 18,793,984.40, 28,190,976.60 and 13,125,280.40

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Solution

The fourth proportional to 18,793,984.40, 28,190,976.60 and 13,125,280.40 is: 19,687,920.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,793,984.40 : 28,190,976.60 = 13,125,280.40 : x
  2. Step 2: Convert to fraction form
    18,793,984.40/28,190,976.60 = 13,125,280.40/x
  3. Step 3: Cross multiply
    18,793,984.40x = 28,190,976.60 × 13,125,280.40
  4. Step 4: Simplify right side
    18,793,984.40x = 370,014,472,624,838.69
  5. Step 5: Solve for x
    x = 370,014,472,624,838.69/18,793,984.40
  6. Step 6: Final answer
    x = 19,687,920.60

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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.