Home / 1,991,564,210.92-2,748,718,459.61-1,187,843,285.56

Finding the Fourth Proportional to 1,991,564,210.92, 2,748,718,459.61 and 1,187,843,285.56

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Solution

The fourth proportional to 1,991,564,210.92, 2,748,718,459.61 and 1,187,843,285.56 is: 1,639,438,361.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,991,564,210.92 : 2,748,718,459.61 = 1,187,843,285.56 : x
  2. Step 2: Convert to fraction form
    1,991,564,210.92/2,748,718,459.61 = 1,187,843,285.56/x
  3. Step 3: Cross multiply
    1,991,564,210.92x = 2,748,718,459.61 × 1,187,843,285.56
  4. Step 4: Simplify right side
    1,991,564,210.92x = 3,265,046,766,138,662,400
  5. Step 5: Solve for x
    x = 3,265,046,766,138,662,400/1,991,564,210.92
  6. Step 6: Final answer
    x = 1,639,438,361.18

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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.