Home / 13,165,824.92-18,161,522-7,658,580.20

Finding the Fourth Proportional to 13,165,824.92, 18,161,522 and 7,658,580.20

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Solution

The fourth proportional to 13,165,824.92, 18,161,522 and 7,658,580.20 is: 10,564,584.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,165,824.92 : 18,161,522 = 7,658,580.20 : x
  2. Step 2: Convert to fraction form
    13,165,824.92/18,161,522 = 7,658,580.20/x
  3. Step 3: Cross multiply
    13,165,824.92x = 18,161,522 × 7,658,580.20
  4. Step 4: Simplify right side
    13,165,824.92x = 139,091,472,791,064.41
  5. Step 5: Solve for x
    x = 139,091,472,791,064.41/13,165,824.92
  6. Step 6: Final answer
    x = 10,564,584.72

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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.