Home / 1,200,446,014.18-1,656,579,920.25-664,621,560.58

Finding the Fourth Proportional to 1,200,446,014.18, 1,656,579,920.25 and 664,621,560.58

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Solution

The fourth proportional to 1,200,446,014.18, 1,656,579,920.25 and 664,621,560.58 is: 917,158,055.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,446,014.18 : 1,656,579,920.25 = 664,621,560.58 : x
  2. Step 2: Convert to fraction form
    1,200,446,014.18/1,656,579,920.25 = 664,621,560.58/x
  3. Step 3: Cross multiply
    1,200,446,014.18x = 1,656,579,920.25 × 664,621,560.58
  4. Step 4: Simplify right side
    1,200,446,014.18x = 1,100,998,731,822,046,976
  5. Step 5: Solve for x
    x = 1,100,998,731,822,046,976/1,200,446,014.18
  6. Step 6: Final answer
    x = 917,158,055.27

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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.