Home / 7,237,316.72-9,987,670.56-3,929,750.32

Finding the Fourth Proportional to 7,237,316.72, 9,987,670.56 and 3,929,750.32

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Solution

The fourth proportional to 7,237,316.72, 9,987,670.56 and 3,929,750.32 is: 5,423,149.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237,316.72 : 9,987,670.56 = 3,929,750.32 : x
  2. Step 2: Convert to fraction form
    7,237,316.72/9,987,670.56 = 3,929,750.32/x
  3. Step 3: Cross multiply
    7,237,316.72x = 9,987,670.56 × 3,929,750.32
  4. Step 4: Simplify right side
    7,237,316.72x = 39,249,051,579,214.58
  5. Step 5: Solve for x
    x = 39,249,051,579,214.58/7,237,316.72
  6. Step 6: Final answer
    x = 5,423,149.64

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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.