Home / 8,520,511.32-12,780,879.96-2,840,737.45

Finding the Fourth Proportional to 8,520,511.32, 12,780,879.96 and 2,840,737.45

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Solution

The fourth proportional to 8,520,511.32, 12,780,879.96 and 2,840,737.45 is: 4,261,143.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,520,511.32 : 12,780,879.96 = 2,840,737.45 : x
  2. Step 2: Convert to fraction form
    8,520,511.32/12,780,879.96 = 2,840,737.45/x
  3. Step 3: Cross multiply
    8,520,511.32x = 12,780,879.96 × 2,840,737.45
  4. Step 4: Simplify right side
    8,520,511.32x = 36,307,124,346,326.51
  5. Step 5: Solve for x
    x = 36,307,124,346,326.51/8,520,511.32
  6. Step 6: Final answer
    x = 4,261,143.84

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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.