Home / 1,120,054,850.10-1,681,593,929.55-890,283,381.30

Finding the Fourth Proportional to 1,120,054,850.10, 1,681,593,929.55 and 890,283,381.30

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Solution

The fourth proportional to 1,120,054,850.10, 1,681,593,929.55 and 890,283,381.30 is: 1,336,626,620.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,120,054,850.10 : 1,681,593,929.55 = 890,283,381.30 : x
  2. Step 2: Convert to fraction form
    1,120,054,850.10/1,681,593,929.55 = 890,283,381.30/x
  3. Step 3: Cross multiply
    1,120,054,850.10x = 1,681,593,929.55 × 890,283,381.30
  4. Step 4: Simplify right side
    1,120,054,850.10x = 1,497,095,129,573,327,872
  5. Step 5: Solve for x
    x = 1,497,095,129,573,327,872/1,120,054,850.10
  6. Step 6: Final answer
    x = 1,336,626,620.95

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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.