Home / 160,686,103.97-221,749,253.15-90,137,352.80

Finding the Fourth Proportional to 160,686,103.97, 221,749,253.15 and 90,137,352.80

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Solution

The fourth proportional to 160,686,103.97, 221,749,253.15 and 90,137,352.80 is: 124,390,909.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,103.97 : 221,749,253.15 = 90,137,352.80 : x
  2. Step 2: Convert to fraction form
    160,686,103.97/221,749,253.15 = 90,137,352.80/x
  3. Step 3: Cross multiply
    160,686,103.97x = 221,749,253.15 × 90,137,352.80
  4. Step 4: Simplify right side
    160,686,103.97x = 19,987,890,664,421,748
  5. Step 5: Solve for x
    x = 19,987,890,664,421,748/160,686,103.97
  6. Step 6: Final answer
    x = 124,390,909.79

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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.