Home / 290,124,038.26-400,380,999.09-157,970,160.10

Finding the Fourth Proportional to 290,124,038.26, 400,380,999.09 and 157,970,160.10

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Solution

The fourth proportional to 290,124,038.26, 400,380,999.09 and 157,970,160.10 is: 218,004,171.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,124,038.26 : 400,380,999.09 = 157,970,160.10 : x
  2. Step 2: Convert to fraction form
    290,124,038.26/400,380,999.09 = 157,970,160.10/x
  3. Step 3: Cross multiply
    290,124,038.26x = 400,380,999.09 × 157,970,160.10
  4. Step 4: Simplify right side
    290,124,038.26x = 63,248,250,527,245,248
  5. Step 5: Solve for x
    x = 63,248,250,527,245,248/290,124,038.26
  6. Step 6: Final answer
    x = 218,004,171.27

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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.