Home / 648,463,631.66-972,755,243.46-211,766,604.54

Finding the Fourth Proportional to 648,463,631.66, 972,755,243.46 and 211,766,604.54

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Solution

The fourth proportional to 648,463,631.66, 972,755,243.46 and 211,766,604.54 is: 317,669,434.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,631.66 : 972,755,243.46 = 211,766,604.54 : x
  2. Step 2: Convert to fraction form
    648,463,631.66/972,755,243.46 = 211,766,604.54/x
  3. Step 3: Cross multiply
    648,463,631.66x = 972,755,243.46 × 211,766,604.54
  4. Step 4: Simplify right side
    648,463,631.66x = 205,997,074,956,005,248
  5. Step 5: Solve for x
    x = 205,997,074,956,005,248/648,463,631.66
  6. Step 6: Final answer
    x = 317,669,434.18

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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.