Home / 15,503,792.64-21,395,025-8,628,272.88

Finding the Fourth Proportional to 15,503,792.64, 21,395,025 and 8,628,272.88

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Solution

The fourth proportional to 15,503,792.64, 21,395,025 and 8,628,272.88 is: 11,906,900.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503,792.64 : 21,395,025 = 8,628,272.88 : x
  2. Step 2: Convert to fraction form
    15,503,792.64/21,395,025 = 8,628,272.88/x
  3. Step 3: Cross multiply
    15,503,792.64x = 21,395,025 × 8,628,272.88
  4. Step 4: Simplify right side
    15,503,792.64x = 184,602,113,974,422.03
  5. Step 5: Solve for x
    x = 184,602,113,974,422.03/15,503,792.64
  6. Step 6: Final answer
    x = 11,906,900.35

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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.