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Finding the Fourth Proportional to 2,539,914,347.20, 3,809,871,520.80 and 2,539,914,347.20

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Solution

The fourth proportional to 2,539,914,347.20, 3,809,871,520.80 and 2,539,914,347.20 is: 3,809,871,520.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,539,914,347.20 : 3,809,871,520.80 = 2,539,914,347.20 : x
  2. Step 2: Convert to fraction form
    2,539,914,347.20/3,809,871,520.80 = 2,539,914,347.20/x
  3. Step 3: Cross multiply
    2,539,914,347.20x = 3,809,871,520.80 × 2,539,914,347.20
  4. Step 4: Simplify right side
    2,539,914,347.20x = 9,676,747,336,668,602,368
  5. Step 5: Solve for x
    x = 9,676,747,336,668,602,368/2,539,914,347.20
  6. Step 6: Final answer
    x = 3,809,871,520.80

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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.