Home / 612,389,976.60-918,584,964.90-440,203,092.60

Finding the Fourth Proportional to 612,389,976.60, 918,584,964.90 and 440,203,092.60

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Solution

The fourth proportional to 612,389,976.60, 918,584,964.90 and 440,203,092.60 is: 660,304,638.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,389,976.60 : 918,584,964.90 = 440,203,092.60 : x
  2. Step 2: Convert to fraction form
    612,389,976.60/918,584,964.90 = 440,203,092.60/x
  3. Step 3: Cross multiply
    612,389,976.60x = 918,584,964.90 × 440,203,092.60
  4. Step 4: Simplify right side
    612,389,976.60x = 404,363,942,364,842,432
  5. Step 5: Solve for x
    x = 404,363,942,364,842,432/612,389,976.60
  6. Step 6: Final answer
    x = 660,304,638.90

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1.5x scale

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.