Home / 13,320,156.16-18,381,838.24-7,208,589.44

Finding the Fourth Proportional to 13,320,156.16, 18,381,838.24 and 7,208,589.44

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Solution

The fourth proportional to 13,320,156.16, 18,381,838.24 and 7,208,589.44 is: 9,947,865.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320,156.16 : 18,381,838.24 = 7,208,589.44 : x
  2. Step 2: Convert to fraction form
    13,320,156.16/18,381,838.24 = 7,208,589.44/x
  3. Step 3: Cross multiply
    13,320,156.16x = 18,381,838.24 × 7,208,589.44
  4. Step 4: Simplify right side
    13,320,156.16x = 132,507,125,024,652.19
  5. Step 5: Solve for x
    x = 132,507,125,024,652.19/13,320,156.16
  6. Step 6: Final answer
    x = 9,947,865.73

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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.