Home / 128,385,253.22-192,702,410.20-61,958,428.55

Finding the Fourth Proportional to 128,385,253.22, 192,702,410.20 and 61,958,428.55

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Solution

The fourth proportional to 128,385,253.22, 192,702,410.20 and 61,958,428.55 is: 92,997,740.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,385,253.22 : 192,702,410.20 = 61,958,428.55 : x
  2. Step 2: Convert to fraction form
    128,385,253.22/192,702,410.20 = 61,958,428.55/x
  3. Step 3: Cross multiply
    128,385,253.22x = 192,702,410.20 × 61,958,428.55
  4. Step 4: Simplify right side
    128,385,253.22x = 11,939,538,512,671,082
  5. Step 5: Solve for x
    x = 11,939,538,512,671,082/128,385,253.22
  6. Step 6: Final answer
    x = 92,997,740.89

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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.