Home / 291,151,287.80-436,726,931.70-138,096,279.80

Finding the Fourth Proportional to 291,151,287.80, 436,726,931.70 and 138,096,279.80

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Solution

The fourth proportional to 291,151,287.80, 436,726,931.70 and 138,096,279.80 is: 207,144,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,151,287.80 : 436,726,931.70 = 138,096,279.80 : x
  2. Step 2: Convert to fraction form
    291,151,287.80/436,726,931.70 = 138,096,279.80/x
  3. Step 3: Cross multiply
    291,151,287.80x = 436,726,931.70 × 138,096,279.80
  4. Step 4: Simplify right side
    291,151,287.80x = 60,310,364,556,238,696
  5. Step 5: Solve for x
    x = 60,310,364,556,238,696/291,151,287.80
  6. Step 6: Final answer
    x = 207,144,419.70

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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.