Home / 1,657,928,939.80-2,287,973,782.96-905,271,957.59

Finding the Fourth Proportional to 1,657,928,939.80, 2,287,973,782.96 and 905,271,957.59

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Solution

The fourth proportional to 1,657,928,939.80, 2,287,973,782.96 and 905,271,957.59 is: 1,249,292,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,928,939.80 : 2,287,973,782.96 = 905,271,957.59 : x
  2. Step 2: Convert to fraction form
    1,657,928,939.80/2,287,973,782.96 = 905,271,957.59/x
  3. Step 3: Cross multiply
    1,657,928,939.80x = 2,287,973,782.96 × 905,271,957.59
  4. Step 4: Simplify right side
    1,657,928,939.80x = 2,071,238,505,414,797,056
  5. Step 5: Solve for x
    x = 2,071,238,505,414,797,056/1,657,928,939.80
  6. Step 6: Final answer
    x = 1,249,292,690.23

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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.