Home / 8,520,553.80-12,780,943.65-2,840,779.98

Finding the Fourth Proportional to 8,520,553.80, 12,780,943.65 and 2,840,779.98

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Solution

The fourth proportional to 8,520,553.80, 12,780,943.65 and 2,840,779.98 is: 4,261,207.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,553.80 : 12,780,943.65 = 2,840,779.98 : x
  2. Step 2: Convert to fraction form
    8,520,553.80/12,780,943.65 = 2,840,779.98/x
  3. Step 3: Cross multiply
    8,520,553.80x = 12,780,943.65 × 2,840,779.98
  4. Step 4: Simplify right side
    8,520,553.80x = 36,307,848,846,428.12
  5. Step 5: Solve for x
    x = 36,307,848,846,428.12/8,520,553.80
  6. Step 6: Final answer
    x = 4,261,207.63

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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.