Home / 19,419,314.40-29,128,971.60-12,616,869.60

Finding the Fourth Proportional to 19,419,314.40, 29,128,971.60 and 12,616,869.60

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Solution

The fourth proportional to 19,419,314.40, 29,128,971.60 and 12,616,869.60 is: 18,925,304.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419,314.40 : 29,128,971.60 = 12,616,869.60 : x
  2. Step 2: Convert to fraction form
    19,419,314.40/29,128,971.60 = 12,616,869.60/x
  3. Step 3: Cross multiply
    19,419,314.40x = 29,128,971.60 × 12,616,869.60
  4. Step 4: Simplify right side
    19,419,314.40x = 367,516,436,259,303.38
  5. Step 5: Solve for x
    x = 367,516,436,259,303.38/19,419,314.40
  6. Step 6: Final answer
    x = 18,925,304.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.