Home / 1,657,928,940.80-2,287,973,784.34-905,271,958.59

Finding the Fourth Proportional to 1,657,928,940.80, 2,287,973,784.34 and 905,271,958.59

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Solution

The fourth proportional to 1,657,928,940.80, 2,287,973,784.34 and 905,271,958.59 is: 1,249,292,691.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,657,928,940.80 : 2,287,973,784.34 = 905,271,958.59 : x
  2. Step 2: Convert to fraction form
    1,657,928,940.80/2,287,973,784.34 = 905,271,958.59/x
  3. Step 3: Cross multiply
    1,657,928,940.80x = 2,287,973,784.34 × 905,271,958.59
  4. Step 4: Simplify right side
    1,657,928,940.80x = 2,071,238,508,952,046,336
  5. Step 5: Solve for x
    x = 2,071,238,508,952,046,336/1,657,928,940.80
  6. Step 6: Final answer
    x = 1,249,292,691.61

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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.