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Finding the Fourth Proportional to 2,988,727,862.80, 4,475,029,637.40 and 2,988,727,862.80

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Solution

The fourth proportional to 2,988,727,862.80, 4,475,029,637.40 and 2,988,727,862.80 is: 4,475,029,637.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,988,727,862.80 : 4,475,029,637.40 = 2,988,727,862.80 : x
  2. Step 2: Convert to fraction form
    2,988,727,862.80/4,475,029,637.40 = 2,988,727,862.80/x
  3. Step 3: Cross multiply
    2,988,727,862.80x = 4,475,029,637.40 × 2,988,727,862.80
  4. Step 4: Simplify right side
    2,988,727,862.80x = 13,374,645,764,153,159,680
  5. Step 5: Solve for x
    x = 13,374,645,764,153,159,680/2,988,727,862.80
  6. Step 6: Final answer
    x = 4,475,029,637.40

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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.