Home / 390,973,180.80-586,790,445.60-161,107,233.60

Finding the Fourth Proportional to 390,973,180.80, 586,790,445.60 and 161,107,233.60

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Solution

The fourth proportional to 390,973,180.80, 586,790,445.60 and 161,107,233.60 is: 241,797,110.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,973,180.80 : 586,790,445.60 = 161,107,233.60 : x
  2. Step 2: Convert to fraction form
    390,973,180.80/586,790,445.60 = 161,107,233.60/x
  3. Step 3: Cross multiply
    390,973,180.80x = 586,790,445.60 × 161,107,233.60
  4. Step 4: Simplify right side
    390,973,180.80x = 94,536,185,393,527,296
  5. Step 5: Solve for x
    x = 94,536,185,393,527,296/390,973,180.80
  6. Step 6: Final answer
    x = 241,797,110.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.