Home / 1,947,947,209.38-2,688,095,131.80-1,055,854,782.43

Finding the Fourth Proportional to 1,947,947,209.38, 2,688,095,131.80 and 1,055,854,782.43

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Solution

The fourth proportional to 1,947,947,209.38, 2,688,095,131.80 and 1,055,854,782.43 is: 1,457,040,563.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,947,947,209.38 : 2,688,095,131.80 = 1,055,854,782.43 : x
  2. Step 2: Convert to fraction form
    1,947,947,209.38/2,688,095,131.80 = 1,055,854,782.43/x
  3. Step 3: Cross multiply
    1,947,947,209.38x = 2,688,095,131.80 × 1,055,854,782.43
  4. Step 4: Simplify right side
    1,947,947,209.38x = 2,838,238,100,533,116,928
  5. Step 5: Solve for x
    x = 2,838,238,100,533,116,928/1,947,947,209.38
  6. Step 6: Final answer
    x = 1,457,040,563.97

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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.