Home / 13,286,812.60-18,335,801.28-7,175,240.56

Finding the Fourth Proportional to 13,286,812.60, 18,335,801.28 and 7,175,240.56

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Solution

The fourth proportional to 13,286,812.60, 18,335,801.28 and 7,175,240.56 is: 9,901,831.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,286,812.60 : 18,335,801.28 = 7,175,240.56 : x
  2. Step 2: Convert to fraction form
    13,286,812.60/18,335,801.28 = 7,175,240.56/x
  3. Step 3: Cross multiply
    13,286,812.60x = 18,335,801.28 × 7,175,240.56
  4. Step 4: Simplify right side
    13,286,812.60x = 131,563,785,044,355.92
  5. Step 5: Solve for x
    x = 131,563,785,044,355.92/13,286,812.60
  6. Step 6: Final answer
    x = 9,901,831.91

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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.