Home / 312,271,340,789.78-430,775,853,349.04-203,947,845,651.96

Finding the Fourth Proportional to 312,271,340,789.78, 430,775,853,349.04 and 203,947,845,651.96

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Solution

The fourth proportional to 312,271,340,789.78, 430,775,853,349.04 and 203,947,845,651.96 is: 281,344,445,594.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,271,340,789.78 : 430,775,853,349.04 = 203,947,845,651.96 : x
  2. Step 2: Convert to fraction form
    312,271,340,789.78/430,775,853,349.04 = 203,947,845,651.96/x
  3. Step 3: Cross multiply
    312,271,340,789.78x = 430,775,853,349.04 × 203,947,845,651.96
  4. Step 4: Simplify right side
    312,271,340,789.78x = 87,855,807,249,421,365,673,984
  5. Step 5: Solve for x
    x = 87,855,807,249,421,365,673,984/312,271,340,789.78
  6. Step 6: Final answer
    x = 281,344,445,594.08

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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.