Home / 18,681,876.40-28,032,145.80-10,601,057.20

Finding the Fourth Proportional to 18,681,876.40, 28,032,145.80 and 10,601,057.20

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Solution

The fourth proportional to 18,681,876.40, 28,032,145.80 and 10,601,057.20 is: 15,906,880.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,681,876.40 : 28,032,145.80 = 10,601,057.20 : x
  2. Step 2: Convert to fraction form
    18,681,876.40/28,032,145.80 = 10,601,057.20/x
  3. Step 3: Cross multiply
    18,681,876.40x = 28,032,145.80 × 10,601,057.20
  4. Step 4: Simplify right side
    18,681,876.40x = 297,170,381,064,539.75
  5. Step 5: Solve for x
    x = 297,170,381,064,539.75/18,681,876.40
  6. Step 6: Final answer
    x = 15,906,880.80

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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.