Home / 309,707,253.63-427,407,285.45-168,571,651.19

Finding the Fourth Proportional to 309,707,253.63, 427,407,285.45 and 168,571,651.19

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Solution

The fourth proportional to 309,707,253.63, 427,407,285.45 and 168,571,651.19 is: 232,635,015.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,707,253.63 : 427,407,285.45 = 168,571,651.19 : x
  2. Step 2: Convert to fraction form
    309,707,253.63/427,407,285.45 = 168,571,651.19/x
  3. Step 3: Cross multiply
    309,707,253.63x = 427,407,285.45 × 168,571,651.19
  4. Step 4: Simplify right side
    309,707,253.63x = 72,048,751,836,805,128
  5. Step 5: Solve for x
    x = 72,048,751,836,805,128/309,707,253.63
  6. Step 6: Final answer
    x = 232,635,015.78

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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.