Home / 21,178,480.50-31,781,157.12-9,048,035.34

Finding the Fourth Proportional to 21,178,480.50, 31,781,157.12 and 9,048,035.34

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Solution

The fourth proportional to 21,178,480.50, 31,781,157.12 and 9,048,035.34 is: 13,577,793.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,480.50 : 31,781,157.12 = 9,048,035.34 : x
  2. Step 2: Convert to fraction form
    21,178,480.50/31,781,157.12 = 9,048,035.34/x
  3. Step 3: Cross multiply
    21,178,480.50x = 31,781,157.12 × 9,048,035.34
  4. Step 4: Simplify right side
    21,178,480.50x = 287,557,032,767,852.62
  5. Step 5: Solve for x
    x = 287,557,032,767,852.62/21,178,480.50
  6. Step 6: Final answer
    x = 13,577,793.40

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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.