Home / 885,029,383.70-1,328,551,845.15-521,728,442.90

Finding the Fourth Proportional to 885,029,383.70, 1,328,551,845.15 and 521,728,442.90

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Solution

The fourth proportional to 885,029,383.70, 1,328,551,845.15 and 521,728,442.90 is: 783,186,748.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    885,029,383.70 : 1,328,551,845.15 = 521,728,442.90 : x
  2. Step 2: Convert to fraction form
    885,029,383.70/1,328,551,845.15 = 521,728,442.90/x
  3. Step 3: Cross multiply
    885,029,383.70x = 1,328,551,845.15 × 521,728,442.90
  4. Step 4: Simplify right side
    885,029,383.70x = 693,143,285,482,031,488
  5. Step 5: Solve for x
    x = 693,143,285,482,031,488/885,029,383.70
  6. Step 6: Final answer
    x = 783,186,748.65

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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.