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Finding the Fourth Proportional to 348,903,685.80, 523,355,528.70 and 219,763,522.80

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Solution

The fourth proportional to 348,903,685.80, 523,355,528.70 and 219,763,522.80 is: 329,645,284.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,903,685.80 : 523,355,528.70 = 219,763,522.80 : x
  2. Step 2: Convert to fraction form
    348,903,685.80/523,355,528.70 = 219,763,522.80/x
  3. Step 3: Cross multiply
    348,903,685.80x = 523,355,528.70 × 219,763,522.80
  4. Step 4: Simplify right side
    348,903,685.80x = 115,014,454,663,968,512
  5. Step 5: Solve for x
    x = 115,014,454,663,968,512/348,903,685.80
  6. Step 6: Final answer
    x = 329,645,284.20

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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.