Home / 111,217,961.20-166,826,941.80-103,659,689.20

Finding the Fourth Proportional to 111,217,961.20, 166,826,941.80 and 103,659,689.20

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Solution

The fourth proportional to 111,217,961.20, 166,826,941.80 and 103,659,689.20 is: 155,489,533.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,217,961.20 : 166,826,941.80 = 103,659,689.20 : x
  2. Step 2: Convert to fraction form
    111,217,961.20/166,826,941.80 = 103,659,689.20/x
  3. Step 3: Cross multiply
    111,217,961.20x = 166,826,941.80 × 103,659,689.20
  4. Step 4: Simplify right side
    111,217,961.20x = 17,293,228,937,174,490
  5. Step 5: Solve for x
    x = 17,293,228,937,174,490/111,217,961.20
  6. Step 6: Final answer
    x = 155,489,533.80

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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.