Home / 648,463,622.18-972,755,229.22-211,766,595.05

Finding the Fourth Proportional to 648,463,622.18, 972,755,229.22 and 211,766,595.05

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Solution

The fourth proportional to 648,463,622.18, 972,755,229.22 and 211,766,595.05 is: 317,669,419.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,463,622.18 : 972,755,229.22 = 211,766,595.05 : x
  2. Step 2: Convert to fraction form
    648,463,622.18/972,755,229.22 = 211,766,595.05/x
  3. Step 3: Cross multiply
    648,463,622.18x = 972,755,229.22 × 211,766,595.05
  4. Step 4: Simplify right side
    648,463,622.18x = 205,997,062,710,904,128
  5. Step 5: Solve for x
    x = 205,997,062,710,904,128/648,463,622.18
  6. Step 6: Final answer
    x = 317,669,419.94

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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.