Home / 218,700,638.60-328,098,197.10-65,362,195.40

Finding the Fourth Proportional to 218,700,638.60, 328,098,197.10 and 65,362,195.40

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Solution

The fourth proportional to 218,700,638.60, 328,098,197.10 and 65,362,195.40 is: 98,057,411.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,700,638.60 : 328,098,197.10 = 65,362,195.40 : x
  2. Step 2: Convert to fraction form
    218,700,638.60/328,098,197.10 = 65,362,195.40/x
  3. Step 3: Cross multiply
    218,700,638.60x = 328,098,197.10 × 65,362,195.40
  4. Step 4: Simplify right side
    218,700,638.60x = 21,445,218,469,237,916
  5. Step 5: Solve for x
    x = 21,445,218,469,237,916/218,700,638.60
  6. Step 6: Final answer
    x = 98,057,411.29

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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.