Home / 296,702,999.20-445,054,498.80-81,292,247.20

Finding the Fourth Proportional to 296,702,999.20, 445,054,498.80 and 81,292,247.20

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Solution

The fourth proportional to 296,702,999.20, 445,054,498.80 and 81,292,247.20 is: 121,938,370.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,702,999.20 : 445,054,498.80 = 81,292,247.20 : x
  2. Step 2: Convert to fraction form
    296,702,999.20/445,054,498.80 = 81,292,247.20/x
  3. Step 3: Cross multiply
    296,702,999.20x = 445,054,498.80 × 81,292,247.20
  4. Step 4: Simplify right side
    296,702,999.20x = 36,179,480,333,921,704
  5. Step 5: Solve for x
    x = 36,179,480,333,921,704/296,702,999.20
  6. Step 6: Final answer
    x = 121,938,370.80

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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.