Home / 657,626,590.72-907,524,617.44-393,308,542.96

Finding the Fourth Proportional to 657,626,590.72, 907,524,617.44 and 393,308,542.96

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Solution

The fourth proportional to 657,626,590.72, 907,524,617.44 and 393,308,542.96 is: 542,765,742.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    657,626,590.72 : 907,524,617.44 = 393,308,542.96 : x
  2. Step 2: Convert to fraction form
    657,626,590.72/907,524,617.44 = 393,308,542.96/x
  3. Step 3: Cross multiply
    657,626,590.72x = 907,524,617.44 × 393,308,542.96
  4. Step 4: Simplify right side
    657,626,590.72x = 356,937,184,985,657,792
  5. Step 5: Solve for x
    x = 356,937,184,985,657,792/657,626,590.72
  6. Step 6: Final answer
    x = 542,765,742.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.