Home / 2,165,468,427.89-2,988,269,111.04-1,225,650,891.65

Finding the Fourth Proportional to 2,165,468,427.89, 2,988,269,111.04 and 1,225,650,891.65

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Solution

The fourth proportional to 2,165,468,427.89, 2,988,269,111.04 and 1,225,650,891.65 is: 1,691,354,467.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,165,468,427.89 : 2,988,269,111.04 = 1,225,650,891.65 : x
  2. Step 2: Convert to fraction form
    2,165,468,427.89/2,988,269,111.04 = 1,225,650,891.65/x
  3. Step 3: Cross multiply
    2,165,468,427.89x = 2,988,269,111.04 × 1,225,650,891.65
  4. Step 4: Simplify right side
    2,165,468,427.89x = 3,662,574,700,440,735,232
  5. Step 5: Solve for x
    x = 3,662,574,700,440,735,232/2,165,468,427.89
  6. Step 6: Final answer
    x = 1,691,354,467.83

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.