Home / 15,255,264-21,047,138.24-8,638,950.72

Finding the Fourth Proportional to 15,255,264, 21,047,138.24 and 8,638,950.72

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Solution

The fourth proportional to 15,255,264, 21,047,138.24 and 8,638,950.72 is: 11,918,849.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255,264 : 21,047,138.24 = 8,638,950.72 : x
  2. Step 2: Convert to fraction form
    15,255,264/21,047,138.24 = 8,638,950.72/x
  3. Step 3: Cross multiply
    15,255,264x = 21,047,138.24 × 8,638,950.72
  4. Step 4: Simplify right side
    15,255,264x = 181,825,190,052,387.53
  5. Step 5: Solve for x
    x = 181,825,190,052,387.53/15,255,264
  6. Step 6: Final answer
    x = 11,918,849.13

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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.