Home / 390,973,150.80-586,790,400.60-161,107,203.60

Finding the Fourth Proportional to 390,973,150.80, 586,790,400.60 and 161,107,203.60

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Solution

The fourth proportional to 390,973,150.80, 586,790,400.60 and 161,107,203.60 is: 241,797,065.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,973,150.80 : 586,790,400.60 = 161,107,203.60 : x
  2. Step 2: Convert to fraction form
    390,973,150.80/586,790,400.60 = 161,107,203.60/x
  3. Step 3: Cross multiply
    390,973,150.80x = 586,790,400.60 × 161,107,203.60
  4. Step 4: Simplify right side
    390,973,150.80x = 94,536,160,539,989,760
  5. Step 5: Solve for x
    x = 94,536,160,539,989,760/390,973,150.80
  6. Step 6: Final answer
    x = 241,797,065.47

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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.