Home / 22,257,787.72-30,663,308.80-20,918,556.40

Finding the Fourth Proportional to 22,257,787.72, 30,663,308.80 and 20,918,556.40

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Solution

The fourth proportional to 22,257,787.72, 30,663,308.80 and 20,918,556.40 is: 28,818,324.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,257,787.72 : 30,663,308.80 = 20,918,556.40 : x
  2. Step 2: Convert to fraction form
    22,257,787.72/30,663,308.80 = 20,918,556.40/x
  3. Step 3: Cross multiply
    22,257,787.72x = 30,663,308.80 × 20,918,556.40
  4. Step 4: Simplify right side
    22,257,787.72x = 641,432,154,543,416.25
  5. Step 5: Solve for x
    x = 641,432,154,543,416.25/22,257,787.72
  6. Step 6: Final answer
    x = 28,818,324.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.