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Finding the Fourth Proportional to 1,993,983,645.76, 2,751,705,854.45 and 1,089,758,041.90

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Solution

The fourth proportional to 1,993,983,645.76, 2,751,705,854.45 and 1,089,758,041.90 is: 1,503,870,701.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,983,645.76 : 2,751,705,854.45 = 1,089,758,041.90 : x
  2. Step 2: Convert to fraction form
    1,993,983,645.76/2,751,705,854.45 = 1,089,758,041.90/x
  3. Step 3: Cross multiply
    1,993,983,645.76x = 2,751,705,854.45 × 1,089,758,041.90
  4. Step 4: Simplify right side
    1,993,983,645.76x = 2,998,693,583,822,011,392
  5. Step 5: Solve for x
    x = 2,998,693,583,822,011,392/1,993,983,645.76
  6. Step 6: Final answer
    x = 1,503,870,701.35

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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.