Home / 13,878,628.66-19,153,938.84-7,998,469.30

Finding the Fourth Proportional to 13,878,628.66, 19,153,938.84 and 7,998,469.30

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Solution

The fourth proportional to 13,878,628.66, 19,153,938.84 and 7,998,469.30 is: 11,038,712.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878,628.66 : 19,153,938.84 = 7,998,469.30 : x
  2. Step 2: Convert to fraction form
    13,878,628.66/19,153,938.84 = 7,998,469.30/x
  3. Step 3: Cross multiply
    13,878,628.66x = 19,153,938.84 × 7,998,469.30
  4. Step 4: Simplify right side
    13,878,628.66x = 153,202,191,785,817.59
  5. Step 5: Solve for x
    x = 153,202,191,785,817.59/13,878,628.66
  6. Step 6: Final answer
    x = 11,038,712.51

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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.