Home / 808,534,985.10-1,115,781,642.38-437,257,016.48

Finding the Fourth Proportional to 808,534,985.10, 1,115,781,642.38 and 437,257,016.48

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Solution

The fourth proportional to 808,534,985.10, 1,115,781,642.38 and 437,257,016.48 is: 603,416,501.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,534,985.10 : 1,115,781,642.38 = 437,257,016.48 : x
  2. Step 2: Convert to fraction form
    808,534,985.10/1,115,781,642.38 = 437,257,016.48/x
  3. Step 3: Cross multiply
    808,534,985.10x = 1,115,781,642.38 × 437,257,016.48
  4. Step 4: Simplify right side
    808,534,985.10x = 487,883,351,985,747,328
  5. Step 5: Solve for x
    x = 487,883,351,985,747,328/808,534,985.10
  6. Step 6: Final answer
    x = 603,416,501.42

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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.