Home / 123,685,317.90-185,550,784.56-40,691,743.38

Finding the Fourth Proportional to 123,685,317.90, 185,550,784.56 and 40,691,743.38

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Solution

The fourth proportional to 123,685,317.90, 185,550,784.56 and 40,691,743.38 is: 61,045,118.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,685,317.90 : 185,550,784.56 = 40,691,743.38 : x
  2. Step 2: Convert to fraction form
    123,685,317.90/185,550,784.56 = 40,691,743.38/x
  3. Step 3: Cross multiply
    123,685,317.90x = 185,550,784.56 × 40,691,743.38
  4. Step 4: Simplify right side
    123,685,317.90x = 7,550,384,909,273,187
  5. Step 5: Solve for x
    x = 7,550,384,909,273,187/123,685,317.90
  6. Step 6: Final answer
    x = 61,045,118.67

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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.