Home / 7,237,308.69-9,987,659.51-3,929,742.32

Finding the Fourth Proportional to 7,237,308.69, 9,987,659.51 and 3,929,742.32

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Solution

The fourth proportional to 7,237,308.69, 9,987,659.51 and 3,929,742.32 is: 5,423,138.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237,308.69 : 9,987,659.51 = 3,929,742.32 : x
  2. Step 2: Convert to fraction form
    7,237,308.69/9,987,659.51 = 3,929,742.32/x
  3. Step 3: Cross multiply
    7,237,308.69x = 9,987,659.51 × 3,929,742.32
  4. Step 4: Simplify right side
    7,237,308.69x = 39,248,928,184,610.45
  5. Step 5: Solve for x
    x = 39,248,928,184,610.45/7,237,308.69
  6. Step 6: Final answer
    x = 5,423,138.61

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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.