Home / 2,118,889,142.45-3,178,333,713.68-1,659,220,233.65

Finding the Fourth Proportional to 2,118,889,142.45, 3,178,333,713.68 and 1,659,220,233.65

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Solution

The fourth proportional to 2,118,889,142.45, 3,178,333,713.68 and 1,659,220,233.65 is: 2,488,830,350.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,889,142.45 : 3,178,333,713.68 = 1,659,220,233.65 : x
  2. Step 2: Convert to fraction form
    2,118,889,142.45/3,178,333,713.68 = 1,659,220,233.65/x
  3. Step 3: Cross multiply
    2,118,889,142.45x = 3,178,333,713.68 × 1,659,220,233.65
  4. Step 4: Simplify right side
    2,118,889,142.45x = 5,273,555,607,029,801,984
  5. Step 5: Solve for x
    x = 5,273,555,607,029,801,984/2,118,889,142.45
  6. Step 6: Final answer
    x = 2,488,830,350.48

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Double scale
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1.5x scale

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.