Home / 309,883,227.56-427,658,309.36-170,653,985.22

Finding the Fourth Proportional to 309,883,227.56, 427,658,309.36 and 170,653,985.22

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Solution

The fourth proportional to 309,883,227.56, 427,658,309.36 and 170,653,985.22 is: 235,513,213.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,883,227.56 : 427,658,309.36 = 170,653,985.22 : x
  2. Step 2: Convert to fraction form
    309,883,227.56/427,658,309.36 = 170,653,985.22/x
  3. Step 3: Cross multiply
    309,883,227.56x = 427,658,309.36 × 170,653,985.22
  4. Step 4: Simplify right side
    309,883,227.56x = 72,981,594,807,081,104
  5. Step 5: Solve for x
    x = 72,981,594,807,081,104/309,883,227.56
  6. Step 6: Final answer
    x = 235,513,213.74

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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.