Home / 1,147,395,165.34-1,717,530,059.40-621,457,998.70

Finding the Fourth Proportional to 1,147,395,165.34, 1,717,530,059.40 and 621,457,998.70

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Solution

The fourth proportional to 1,147,395,165.34, 1,717,530,059.40 and 621,457,998.70 is: 930,257,356.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,395,165.34 : 1,717,530,059.40 = 621,457,998.70 : x
  2. Step 2: Convert to fraction form
    1,147,395,165.34/1,717,530,059.40 = 621,457,998.70/x
  3. Step 3: Cross multiply
    1,147,395,165.34x = 1,717,530,059.40 × 621,457,998.70
  4. Step 4: Simplify right side
    1,147,395,165.34x = 1,067,372,793,421,816,320
  5. Step 5: Solve for x
    x = 1,067,372,793,421,816,320/1,147,395,165.34
  6. Step 6: Final answer
    x = 930,257,356.55

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.