Home / 133,186,621.12-183,820,925.28-77,449,289.92

Finding the Fourth Proportional to 133,186,621.12, 183,820,925.28 and 77,449,289.92

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Solution

The fourth proportional to 133,186,621.12, 183,820,925.28 and 77,449,289.92 is: 106,893,620.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,186,621.12 : 183,820,925.28 = 77,449,289.92 : x
  2. Step 2: Convert to fraction form
    133,186,621.12/183,820,925.28 = 77,449,289.92/x
  3. Step 3: Cross multiply
    133,186,621.12x = 183,820,925.28 × 77,449,289.92
  4. Step 4: Simplify right side
    133,186,621.12x = 14,236,800,135,373,378
  5. Step 5: Solve for x
    x = 14,236,800,135,373,378/133,186,621.12
  6. Step 6: Final answer
    x = 106,893,620.51

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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.