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Finding the Fourth Proportional to 1,911,796,215.60, 2,862,592,489.80 and 1,911,796,215.60

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Solution

The fourth proportional to 1,911,796,215.60, 2,862,592,489.80 and 1,911,796,215.60 is: 2,862,592,489.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,911,796,215.60 : 2,862,592,489.80 = 1,911,796,215.60 : x
  2. Step 2: Convert to fraction form
    1,911,796,215.60/2,862,592,489.80 = 1,911,796,215.60/x
  3. Step 3: Cross multiply
    1,911,796,215.60x = 2,862,592,489.80 × 1,911,796,215.60
  4. Step 4: Simplify right side
    1,911,796,215.60x = 5,472,693,488,804,621,312
  5. Step 5: Solve for x
    x = 5,472,693,488,804,621,312/1,911,796,215.60
  6. Step 6: Final answer
    x = 2,862,592,489.80

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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.