Home / 503,456,108.30-694,776,627.39-288,909,715.77

Finding the Fourth Proportional to 503,456,108.30, 694,776,627.39 and 288,909,715.77

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Solution

The fourth proportional to 503,456,108.30, 694,776,627.39 and 288,909,715.77 is: 398,699,538.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    503,456,108.30 : 694,776,627.39 = 288,909,715.77 : x
  2. Step 2: Convert to fraction form
    503,456,108.30/694,776,627.39 = 288,909,715.77/x
  3. Step 3: Cross multiply
    503,456,108.30x = 694,776,627.39 × 288,909,715.77
  4. Step 4: Simplify right side
    503,456,108.30x = 200,727,717,942,884,064
  5. Step 5: Solve for x
    x = 200,727,717,942,884,064/503,456,108.30
  6. Step 6: Final answer
    x = 398,699,538.32

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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.