Home / 7,129,356.55-9,838,514.34-3,866,170.30

Finding the Fourth Proportional to 7,129,356.55, 9,838,514.34 and 3,866,170.30

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Solution

The fourth proportional to 7,129,356.55, 9,838,514.34 and 3,866,170.30 is: 5,335,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,129,356.55 : 9,838,514.34 = 3,866,170.30 : x
  2. Step 2: Convert to fraction form
    7,129,356.55/9,838,514.34 = 3,866,170.30/x
  3. Step 3: Cross multiply
    7,129,356.55x = 9,838,514.34 × 3,866,170.30
  4. Step 4: Simplify right side
    7,129,356.55x = 38,037,371,912,835.81
  5. Step 5: Solve for x
    x = 38,037,371,912,835.81/7,129,356.55
  6. Step 6: Final answer
    x = 5,335,316.26

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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.