Home / 453,006,036.85-679,509,843.49-142,137,509.69

Finding the Fourth Proportional to 453,006,036.85, 679,509,843.49 and 142,137,509.69

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Solution

The fourth proportional to 453,006,036.85, 679,509,843.49 and 142,137,509.69 is: 213,206,511.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,006,036.85 : 679,509,843.49 = 142,137,509.69 : x
  2. Step 2: Convert to fraction form
    453,006,036.85/679,509,843.49 = 142,137,509.69/x
  3. Step 3: Cross multiply
    453,006,036.85x = 679,509,843.49 × 142,137,509.69
  4. Step 4: Simplify right side
    453,006,036.85x = 96,583,836,960,290,384
  5. Step 5: Solve for x
    x = 96,583,836,960,290,384/453,006,036.85
  6. Step 6: Final answer
    x = 213,206,511.84

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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.