Home / 20,284,872.64-30,420,878.98-6,634,862.80

Finding the Fourth Proportional to 20,284,872.64, 30,420,878.98 and 6,634,862.80

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Solution

The fourth proportional to 20,284,872.64, 30,420,878.98 and 6,634,862.80 is: 9,950,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,284,872.64 : 30,420,878.98 = 6,634,862.80 : x
  2. Step 2: Convert to fraction form
    20,284,872.64/30,420,878.98 = 6,634,862.80/x
  3. Step 3: Cross multiply
    20,284,872.64x = 30,420,878.98 × 6,634,862.80
  4. Step 4: Simplify right side
    20,284,872.64x = 201,838,358,287,703.94
  5. Step 5: Solve for x
    x = 201,838,358,287,703.94/20,284,872.64
  6. Step 6: Final answer
    x = 9,950,191.05

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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.