Home / 690,413,808.44-1,035,613,615.44-399,095,565.32

Finding the Fourth Proportional to 690,413,808.44, 1,035,613,615.44 and 399,095,565.32

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Solution

The fourth proportional to 690,413,808.44, 1,035,613,615.44 and 399,095,565.32 is: 598,639,245.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,413,808.44 : 1,035,613,615.44 = 399,095,565.32 : x
  2. Step 2: Convert to fraction form
    690,413,808.44/1,035,613,615.44 = 399,095,565.32/x
  3. Step 3: Cross multiply
    690,413,808.44x = 1,035,613,615.44 × 399,095,565.32
  4. Step 4: Simplify right side
    690,413,808.44x = 413,308,801,307,115,904
  5. Step 5: Solve for x
    x = 413,308,801,307,115,904/690,413,808.44
  6. Step 6: Final answer
    x = 598,639,245.41

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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.