Home / 9,672,101.10-13,346,969.13-5,320,479.78

Finding the Fourth Proportional to 9,672,101.10, 13,346,969.13 and 5,320,479.78

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Solution

The fourth proportional to 9,672,101.10, 13,346,969.13 and 5,320,479.78 is: 7,341,970.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,672,101.10 : 13,346,969.13 = 5,320,479.78 : x
  2. Step 2: Convert to fraction form
    9,672,101.10/13,346,969.13 = 5,320,479.78/x
  3. Step 3: Cross multiply
    9,672,101.10x = 13,346,969.13 × 5,320,479.78
  4. Step 4: Simplify right side
    9,672,101.10x = 71,012,279,380,449.20
  5. Step 5: Solve for x
    x = 71,012,279,380,449.20/9,672,101.10
  6. Step 6: Final answer
    x = 7,341,970.34

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1.5x scale

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.