Home / 386,251,775.61-533,041,467.15-221,271,231.57

Finding the Fourth Proportional to 386,251,775.61, 533,041,467.15 and 221,271,231.57

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Solution

The fourth proportional to 386,251,775.61, 533,041,467.15 and 221,271,231.57 is: 305,362,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,251,775.61 : 533,041,467.15 = 221,271,231.57 : x
  2. Step 2: Convert to fraction form
    386,251,775.61/533,041,467.15 = 221,271,231.57/x
  3. Step 3: Cross multiply
    386,251,775.61x = 533,041,467.15 × 221,271,231.57
  4. Step 4: Simplify right side
    386,251,775.61x = 117,946,741,914,160,192
  5. Step 5: Solve for x
    x = 117,946,741,914,160,192/386,251,775.61
  6. Step 6: Final answer
    x = 305,362,329.35

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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.