Home / 390,319,168.38-584,585,144.37-196,285,729.02

Finding the Fourth Proportional to 390,319,168.38, 584,585,144.37 and 196,285,729.02

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Solution

The fourth proportional to 390,319,168.38, 584,585,144.37 and 196,285,729.02 is: 293,979,211.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,319,168.38 : 584,585,144.37 = 196,285,729.02 : x
  2. Step 2: Convert to fraction form
    390,319,168.38/584,585,144.37 = 196,285,729.02/x
  3. Step 3: Cross multiply
    390,319,168.38x = 584,585,144.37 × 196,285,729.02
  4. Step 4: Simplify right side
    390,319,168.38x = 114,745,721,236,927,408
  5. Step 5: Solve for x
    x = 114,745,721,236,927,408/390,319,168.38
  6. Step 6: Final answer
    x = 293,979,211.20

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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.