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Finding the Fourth Proportional to 2,720,121,347.20, 3,815,425,827.20 and 2,720,121,347.20

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Solution

The fourth proportional to 2,720,121,347.20, 3,815,425,827.20 and 2,720,121,347.20 is: 3,815,425,827.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,720,121,347.20 : 3,815,425,827.20 = 2,720,121,347.20 : x
  2. Step 2: Convert to fraction form
    2,720,121,347.20/3,815,425,827.20 = 2,720,121,347.20/x
  3. Step 3: Cross multiply
    2,720,121,347.20x = 3,815,425,827.20 × 2,720,121,347.20
  4. Step 4: Simplify right side
    2,720,121,347.20x = 10,378,421,241,224,937,472
  5. Step 5: Solve for x
    x = 10,378,421,241,224,937,472/2,720,121,347.20
  6. Step 6: Final answer
    x = 3,815,425,827.20

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.