Home / 7,035,830.22-9,709,481.68-3,979,978.86

Finding the Fourth Proportional to 7,035,830.22, 9,709,481.68 and 3,979,978.86

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Solution

The fourth proportional to 7,035,830.22, 9,709,481.68 and 3,979,978.86 is: 5,492,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,035,830.22 : 9,709,481.68 = 3,979,978.86 : x
  2. Step 2: Convert to fraction form
    7,035,830.22/9,709,481.68 = 3,979,978.86/x
  3. Step 3: Cross multiply
    7,035,830.22x = 9,709,481.68 × 3,979,978.86
  4. Step 4: Simplify right side
    7,035,830.22x = 38,643,531,827,957.28
  5. Step 5: Solve for x
    x = 38,643,531,827,957.28/7,035,830.22
  6. Step 6: Final answer
    x = 5,492,391.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.