Home / 291,276,019.40-436,914,029.10-266,333,721.80

Finding the Fourth Proportional to 291,276,019.40, 436,914,029.10 and 266,333,721.80

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Solution

The fourth proportional to 291,276,019.40, 436,914,029.10 and 266,333,721.80 is: 399,500,582.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,276,019.40 : 436,914,029.10 = 266,333,721.80 : x
  2. Step 2: Convert to fraction form
    291,276,019.40/436,914,029.10 = 266,333,721.80/x
  3. Step 3: Cross multiply
    291,276,019.40x = 436,914,029.10 × 266,333,721.80
  4. Step 4: Simplify right side
    291,276,019.40x = 116,364,939,476,836,512
  5. Step 5: Solve for x
    x = 116,364,939,476,836,512/291,276,019.40
  6. Step 6: Final answer
    x = 399,500,582.70

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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.