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Finding the Fourth Proportional to 436,994,401.60, 655,302,645.60 and 218,560,340.80

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Solution

The fourth proportional to 436,994,401.60, 655,302,645.60 and 218,560,340.80 is: 327,746,005.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,994,401.60 : 655,302,645.60 = 218,560,340.80 : x
  2. Step 2: Convert to fraction form
    436,994,401.60/655,302,645.60 = 218,560,340.80/x
  3. Step 3: Cross multiply
    436,994,401.60x = 655,302,645.60 × 218,560,340.80
  4. Step 4: Simplify right side
    436,994,401.60x = 143,223,169,549,477,632
  5. Step 5: Solve for x
    x = 143,223,169,549,477,632/436,994,401.60
  6. Step 6: Final answer
    x = 327,746,005.50

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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.