Home / 291,084,540.80-436,626,811.20-138,029,532.80

Finding the Fourth Proportional to 291,084,540.80, 436,626,811.20 and 138,029,532.80

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Solution

The fourth proportional to 291,084,540.80, 436,626,811.20 and 138,029,532.80 is: 207,044,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,084,540.80 : 436,626,811.20 = 138,029,532.80 : x
  2. Step 2: Convert to fraction form
    291,084,540.80/436,626,811.20 = 138,029,532.80/x
  3. Step 3: Cross multiply
    291,084,540.80x = 436,626,811.20 × 138,029,532.80
  4. Step 4: Simplify right side
    291,084,540.80x = 60,267,394,757,889,808
  5. Step 5: Solve for x
    x = 60,267,394,757,889,808/291,084,540.80
  6. Step 6: Final answer
    x = 207,044,299.20

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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.