Home / 689,848,467.20-1,034,772,700.80-344,855,340.80

Finding the Fourth Proportional to 689,848,467.20, 1,034,772,700.80 and 344,855,340.80

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Solution

The fourth proportional to 689,848,467.20, 1,034,772,700.80 and 344,855,340.80 is: 517,283,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,848,467.20 : 1,034,772,700.80 = 344,855,340.80 : x
  2. Step 2: Convert to fraction form
    689,848,467.20/1,034,772,700.80 = 344,855,340.80/x
  3. Step 3: Cross multiply
    689,848,467.20x = 1,034,772,700.80 × 344,855,340.80
  4. Step 4: Simplify right side
    689,848,467.20x = 356,846,892,384,920,448
  5. Step 5: Solve for x
    x = 356,846,892,384,920,448/689,848,467.20
  6. Step 6: Final answer
    x = 517,283,011.20

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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.