Home / 13,912,032.20-20,878,416.30-7,176,979.40

Finding the Fourth Proportional to 13,912,032.20, 20,878,416.30 and 7,176,979.40

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Solution

The fourth proportional to 13,912,032.20, 20,878,416.30 and 7,176,979.40 is: 10,770,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912,032.20 : 20,878,416.30 = 7,176,979.40 : x
  2. Step 2: Convert to fraction form
    13,912,032.20/20,878,416.30 = 7,176,979.40/x
  3. Step 3: Cross multiply
    13,912,032.20x = 20,878,416.30 × 7,176,979.40
  4. Step 4: Simplify right side
    13,912,032.20x = 149,843,963,689,724.22
  5. Step 5: Solve for x
    x = 149,843,963,689,724.22/13,912,032.20
  6. Step 6: Final answer
    x = 10,770,817.77

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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.