Home / 2,118,889,135.45-3,178,333,703.18-1,659,220,226.65

Finding the Fourth Proportional to 2,118,889,135.45, 3,178,333,703.18 and 1,659,220,226.65

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Solution

The fourth proportional to 2,118,889,135.45, 3,178,333,703.18 and 1,659,220,226.65 is: 2,488,830,339.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,889,135.45 : 3,178,333,703.18 = 1,659,220,226.65 : x
  2. Step 2: Convert to fraction form
    2,118,889,135.45/3,178,333,703.18 = 1,659,220,226.65/x
  3. Step 3: Cross multiply
    2,118,889,135.45x = 3,178,333,703.18 × 1,659,220,226.65
  4. Step 4: Simplify right side
    2,118,889,135.45x = 5,273,555,567,359,653,888
  5. Step 5: Solve for x
    x = 5,273,555,567,359,653,888/2,118,889,135.45
  6. Step 6: Final answer
    x = 2,488,830,339.98

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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.