Home / 45,649,432.72-68,312,511.85-28,385,763.21

Finding the Fourth Proportional to 45,649,432.72, 68,312,511.85 and 28,385,763.21

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Solution

The fourth proportional to 45,649,432.72, 68,312,511.85 and 28,385,763.21 is: 42,478,135.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,649,432.72 : 68,312,511.85 = 28,385,763.21 : x
  2. Step 2: Convert to fraction form
    45,649,432.72/68,312,511.85 = 28,385,763.21/x
  3. Step 3: Cross multiply
    45,649,432.72x = 68,312,511.85 × 28,385,763.21
  4. Step 4: Simplify right side
    45,649,432.72x = 1,939,102,785,654,419
  5. Step 5: Solve for x
    x = 1,939,102,785,654,419/45,649,432.72
  6. Step 6: Final answer
    x = 42,478,135.44

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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.