Home / 140,963,754.83-211,653,196.97-78,836,790.02

Finding the Fourth Proportional to 140,963,754.83, 211,653,196.97 and 78,836,790.02

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Solution

The fourth proportional to 140,963,754.83, 211,653,196.97 and 78,836,790.02 is: 118,371,269.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963,754.83 : 211,653,196.97 = 78,836,790.02 : x
  2. Step 2: Convert to fraction form
    140,963,754.83/211,653,196.97 = 78,836,790.02/x
  3. Step 3: Cross multiply
    140,963,754.83x = 211,653,196.97 × 78,836,790.02
  4. Step 4: Simplify right side
    140,963,754.83x = 16,686,058,645,133,140
  5. Step 5: Solve for x
    x = 16,686,058,645,133,140/140,963,754.83
  6. Step 6: Final answer
    x = 118,371,269.73

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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.