Home / 648,463,624.67-972,755,232.97-211,766,597.55

Finding the Fourth Proportional to 648,463,624.67, 972,755,232.97 and 211,766,597.55

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Solution

The fourth proportional to 648,463,624.67, 972,755,232.97 and 211,766,597.55 is: 317,669,423.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,624.67 : 972,755,232.97 = 211,766,597.55 : x
  2. Step 2: Convert to fraction form
    648,463,624.67/972,755,232.97 = 211,766,597.55/x
  3. Step 3: Cross multiply
    648,463,624.67x = 972,755,232.97 × 211,766,597.55
  4. Step 4: Simplify right side
    648,463,624.67x = 205,997,065,935,014,496
  5. Step 5: Solve for x
    x = 205,997,065,935,014,496/648,463,624.67
  6. Step 6: Final answer
    x = 317,669,423.69

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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.