Home / 7,237,315.69-9,987,669.17-3,929,749.32

Finding the Fourth Proportional to 7,237,315.69, 9,987,669.17 and 3,929,749.32

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Solution

The fourth proportional to 7,237,315.69, 9,987,669.17 and 3,929,749.32 is: 5,423,148.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,237,315.69 : 9,987,669.17 = 3,929,749.32 : x
  2. Step 2: Convert to fraction form
    7,237,315.69/9,987,669.17 = 3,929,749.32/x
  3. Step 3: Cross multiply
    7,237,315.69x = 9,987,669.17 × 3,929,749.32
  4. Step 4: Simplify right side
    7,237,315.69x = 39,249,036,129,192.46
  5. Step 5: Solve for x
    x = 39,249,036,129,192.46/7,237,315.69
  6. Step 6: Final answer
    x = 5,423,148.28

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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.