Home / 160,686,120.20-221,749,275.60-90,137,369.08

Finding the Fourth Proportional to 160,686,120.20, 221,749,275.60 and 90,137,369.08

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Solution

The fourth proportional to 160,686,120.20, 221,749,275.60 and 90,137,369.08 is: 124,390,932.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    160,686,120.20 : 221,749,275.60 = 90,137,369.08 : x
  2. Step 2: Convert to fraction form
    160,686,120.20/221,749,275.60 = 90,137,369.08/x
  3. Step 3: Cross multiply
    160,686,120.20x = 221,749,275.60 × 90,137,369.08
  4. Step 4: Simplify right side
    160,686,120.20x = 19,987,896,297,979,836
  5. Step 5: Solve for x
    x = 19,987,896,297,979,836/160,686,120.20
  6. Step 6: Final answer
    x = 124,390,932.29

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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.