Home / 201,632,936.10-302,449,404.15-139,215,190.65

Finding the Fourth Proportional to 201,632,936.10, 302,449,404.15 and 139,215,190.65

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Solution

The fourth proportional to 201,632,936.10, 302,449,404.15 and 139,215,190.65 is: 208,822,785.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,632,936.10 : 302,449,404.15 = 139,215,190.65 : x
  2. Step 2: Convert to fraction form
    201,632,936.10/302,449,404.15 = 139,215,190.65/x
  3. Step 3: Cross multiply
    201,632,936.10x = 302,449,404.15 × 139,215,190.65
  4. Step 4: Simplify right side
    201,632,936.10x = 42,105,551,460,721,152
  5. Step 5: Solve for x
    x = 42,105,551,460,721,152/201,632,936.10
  6. Step 6: Final answer
    x = 208,822,785.98

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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.