Home / 139,290,670.59-208,936,896.23-40,921,974.84

Finding the Fourth Proportional to 139,290,670.59, 208,936,896.23 and 40,921,974.84

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Solution

The fourth proportional to 139,290,670.59, 208,936,896.23 and 40,921,974.84 is: 61,383,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,290,670.59 : 208,936,896.23 = 40,921,974.84 : x
  2. Step 2: Convert to fraction form
    139,290,670.59/208,936,896.23 = 40,921,974.84/x
  3. Step 3: Cross multiply
    139,290,670.59x = 208,936,896.23 × 40,921,974.84
  4. Step 4: Simplify right side
    139,290,670.59x = 8,550,110,411,250,654
  5. Step 5: Solve for x
    x = 8,550,110,411,250,654/139,290,670.59
  6. Step 6: Final answer
    x = 61,383,223.84

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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.