Home / 21,453,341.80-32,181,567.90-12,915,293.80

Finding the Fourth Proportional to 21,453,341.80, 32,181,567.90 and 12,915,293.80

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Solution

The fourth proportional to 21,453,341.80, 32,181,567.90 and 12,915,293.80 is: 19,373,876.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,453,341.80 : 32,181,567.90 = 12,915,293.80 : x
  2. Step 2: Convert to fraction form
    21,453,341.80/32,181,567.90 = 12,915,293.80/x
  3. Step 3: Cross multiply
    21,453,341.80x = 32,181,567.90 × 12,915,293.80
  4. Step 4: Simplify right side
    21,453,341.80x = 415,634,404,373,149
  5. Step 5: Solve for x
    x = 415,634,404,373,149/21,453,341.80
  6. Step 6: Final answer
    x = 19,373,876.96

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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.