Home / 13,388,699,619.39-18,475,850,649.25-7,285,077,379.74

Finding the Fourth Proportional to 13,388,699,619.39, 18,475,850,649.25 and 7,285,077,379.74

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Solution

The fourth proportional to 13,388,699,619.39, 18,475,850,649.25 and 7,285,077,379.74 is: 10,053,104,891.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,388,699,619.39 : 18,475,850,649.25 = 7,285,077,379.74 : x
  2. Step 2: Convert to fraction form
    13,388,699,619.39/18,475,850,649.25 = 7,285,077,379.74/x
  3. Step 3: Cross multiply
    13,388,699,619.39x = 18,475,850,649.25 × 7,285,077,379.74
  4. Step 4: Simplify right side
    13,388,699,619.39x = 134,598,001,636,269,326,336
  5. Step 5: Solve for x
    x = 134,598,001,636,269,326,336/13,388,699,619.39
  6. Step 6: Final answer
    x = 10,053,104,891.63

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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.