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Finding the Fourth Proportional to 291,267,329.60, 436,607,061.60 and 145,476,660.80

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Solution

The fourth proportional to 291,267,329.60, 436,607,061.60 and 145,476,660.80 is: 218,068,183.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,267,329.60 : 436,607,061.60 = 145,476,660.80 : x
  2. Step 2: Convert to fraction form
    291,267,329.60/436,607,061.60 = 145,476,660.80/x
  3. Step 3: Cross multiply
    291,267,329.60x = 436,607,061.60 × 145,476,660.80
  4. Step 4: Simplify right side
    291,267,329.60x = 63,516,137,403,267,912
  5. Step 5: Solve for x
    x = 63,516,137,403,267,912/291,267,329.60
  6. Step 6: Final answer
    x = 218,068,183.24

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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.