Home / 7,939,319.15-11,909,689.16-3,081,511.77

Finding the Fourth Proportional to 7,939,319.15, 11,909,689.16 and 3,081,511.77

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Solution

The fourth proportional to 7,939,319.15, 11,909,689.16 and 3,081,511.77 is: 4,622,543.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,939,319.15 : 11,909,689.16 = 3,081,511.77 : x
  2. Step 2: Convert to fraction form
    7,939,319.15/11,909,689.16 = 3,081,511.77/x
  3. Step 3: Cross multiply
    7,939,319.15x = 11,909,689.16 × 3,081,511.77
  4. Step 4: Simplify right side
    7,939,319.15x = 36,699,847,308,173.85
  5. Step 5: Solve for x
    x = 36,699,847,308,173.85/7,939,319.15
  6. Step 6: Final answer
    x = 4,622,543.40

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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.