Home / 723,484,043.20-1,085,226,064.80-378,543,404.80

Finding the Fourth Proportional to 723,484,043.20, 1,085,226,064.80 and 378,543,404.80

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Solution

The fourth proportional to 723,484,043.20, 1,085,226,064.80 and 378,543,404.80 is: 567,815,107.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    723,484,043.20 : 1,085,226,064.80 = 378,543,404.80 : x
  2. Step 2: Convert to fraction form
    723,484,043.20/1,085,226,064.80 = 378,543,404.80/x
  3. Step 3: Cross multiply
    723,484,043.20x = 1,085,226,064.80 × 378,543,404.80
  4. Step 4: Simplify right side
    723,484,043.20x = 410,805,169,547,097,408
  5. Step 5: Solve for x
    x = 410,805,169,547,097,408/723,484,043.20
  6. Step 6: Final answer
    x = 567,815,107.20

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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.