Home / 386,030,533.20-532,719,638.10-221,049,989.16

Finding the Fourth Proportional to 386,030,533.20, 532,719,638.10 and 221,049,989.16

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Solution

The fourth proportional to 386,030,533.20, 532,719,638.10 and 221,049,989.16 is: 305,047,554.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,030,533.20 : 532,719,638.10 = 221,049,989.16 : x
  2. Step 2: Convert to fraction form
    386,030,533.20/532,719,638.10 = 221,049,989.16/x
  3. Step 3: Cross multiply
    386,030,533.20x = 532,719,638.10 × 221,049,989.16
  4. Step 4: Simplify right side
    386,030,533.20x = 117,757,670,227,324,128
  5. Step 5: Solve for x
    x = 117,757,670,227,324,128/386,030,533.20
  6. Step 6: Final answer
    x = 305,047,554.79

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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.