Home / 11,143,646.29-15,380,437.31-7,228,254.72

Finding the Fourth Proportional to 11,143,646.29, 15,380,437.31 and 7,228,254.72

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Solution

The fourth proportional to 11,143,646.29, 15,380,437.31 and 7,228,254.72 is: 9,976,422.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,143,646.29 : 15,380,437.31 = 7,228,254.72 : x
  2. Step 2: Convert to fraction form
    11,143,646.29/15,380,437.31 = 7,228,254.72/x
  3. Step 3: Cross multiply
    11,143,646.29x = 15,380,437.31 × 7,228,254.72
  4. Step 4: Simplify right side
    11,143,646.29x = 111,173,718,581,671.61
  5. Step 5: Solve for x
    x = 111,173,718,581,671.61/11,143,646.29
  6. Step 6: Final answer
    x = 9,976,422.05

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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.