Home / 1,231,344,203.70-1,699,255,917.26-666,833,467.35

Finding the Fourth Proportional to 1,231,344,203.70, 1,699,255,917.26 and 666,833,467.35

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Solution

The fourth proportional to 1,231,344,203.70, 1,699,255,917.26 and 666,833,467.35 is: 920,230,681.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,231,344,203.70 : 1,699,255,917.26 = 666,833,467.35 : x
  2. Step 2: Convert to fraction form
    1,231,344,203.70/1,699,255,917.26 = 666,833,467.35/x
  3. Step 3: Cross multiply
    1,231,344,203.70x = 1,699,255,917.26 × 666,833,467.35
  4. Step 4: Simplify right side
    1,231,344,203.70x = 1,133,120,715,221,490,560
  5. Step 5: Solve for x
    x = 1,133,120,715,221,490,560/1,231,344,203.70
  6. Step 6: Final answer
    x = 920,230,681.09

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Half scale
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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.