Home / 1,115,152,146.36-1,672,918,787.89-459,744,893.65

Finding the Fourth Proportional to 1,115,152,146.36, 1,672,918,787.89 and 459,744,893.65

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Solution

The fourth proportional to 1,115,152,146.36, 1,672,918,787.89 and 459,744,893.65 is: 689,695,906.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,115,152,146.36 : 1,672,918,787.89 = 459,744,893.65 : x
  2. Step 2: Convert to fraction form
    1,115,152,146.36/1,672,918,787.89 = 459,744,893.65/x
  3. Step 3: Cross multiply
    1,115,152,146.36x = 1,672,918,787.89 × 459,744,893.65
  4. Step 4: Simplify right side
    1,115,152,146.36x = 769,115,870,212,911,616
  5. Step 5: Solve for x
    x = 769,115,870,212,911,616/1,115,152,146.36
  6. Step 6: Final answer
    x = 689,695,906.27

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Double scale
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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.