Home / 154,557,426.88-213,294,048.96-84,941,542.72

Finding the Fourth Proportional to 154,557,426.88, 213,294,048.96 and 84,941,542.72

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Solution

The fourth proportional to 154,557,426.88, 213,294,048.96 and 84,941,542.72 is: 117,221,966.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,557,426.88 : 213,294,048.96 = 84,941,542.72 : x
  2. Step 2: Convert to fraction form
    154,557,426.88/213,294,048.96 = 84,941,542.72/x
  3. Step 3: Cross multiply
    154,557,426.88x = 213,294,048.96 × 84,941,542.72
  4. Step 4: Simplify right side
    154,557,426.88x = 18,117,525,571,657,612
  5. Step 5: Solve for x
    x = 18,117,525,571,657,612/154,557,426.88
  6. Step 6: Final answer
    x = 117,221,966.86

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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.