Home / 128,679,817.10-192,911,239.44-55,841,727.42

Finding the Fourth Proportional to 128,679,817.10, 192,911,239.44 and 55,841,727.42

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Solution

The fourth proportional to 128,679,817.10, 192,911,239.44 and 55,841,727.42 is: 83,715,512.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,679,817.10 : 192,911,239.44 = 55,841,727.42 : x
  2. Step 2: Convert to fraction form
    128,679,817.10/192,911,239.44 = 55,841,727.42/x
  3. Step 3: Cross multiply
    128,679,817.10x = 192,911,239.44 × 55,841,727.42
  4. Step 4: Simplify right side
    128,679,817.10x = 10,772,496,849,062,834
  5. Step 5: Solve for x
    x = 10,772,496,849,062,834/128,679,817.10
  6. Step 6: Final answer
    x = 83,715,512.60

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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.