Home / 522,677,093.72-784,012,152.98-211,780,122.91

Finding the Fourth Proportional to 522,677,093.72, 784,012,152.98 and 211,780,122.91

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Solution

The fourth proportional to 522,677,093.72, 784,012,152.98 and 211,780,122.91 is: 317,668,771.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,677,093.72 : 784,012,152.98 = 211,780,122.91 : x
  2. Step 2: Convert to fraction form
    522,677,093.72/784,012,152.98 = 211,780,122.91/x
  3. Step 3: Cross multiply
    522,677,093.72x = 784,012,152.98 × 211,780,122.91
  4. Step 4: Simplify right side
    522,677,093.72x = 166,038,190,119,607,520
  5. Step 5: Solve for x
    x = 166,038,190,119,607,520/522,677,093.72
  6. Step 6: Final answer
    x = 317,668,771.25

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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.