Home / 503,456,105.30-694,776,623.24-288,909,712.77

Finding the Fourth Proportional to 503,456,105.30, 694,776,623.24 and 288,909,712.77

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Solution

The fourth proportional to 503,456,105.30, 694,776,623.24 and 288,909,712.77 is: 398,699,534.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,456,105.30 : 694,776,623.24 = 288,909,712.77 : x
  2. Step 2: Convert to fraction form
    503,456,105.30/694,776,623.24 = 288,909,712.77/x
  3. Step 3: Cross multiply
    503,456,105.30x = 694,776,623.24 × 288,909,712.77
  4. Step 4: Simplify right side
    503,456,105.30x = 200,727,714,660,301,152
  5. Step 5: Solve for x
    x = 200,727,714,660,301,152/503,456,105.30
  6. Step 6: Final answer
    x = 398,699,534.18

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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.