Home / 790,432,175.54-1,090,802,900.94-438,014,051.66

Finding the Fourth Proportional to 790,432,175.54, 1,090,802,900.94 and 438,014,051.66

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Solution

The fourth proportional to 790,432,175.54, 1,090,802,900.94 and 438,014,051.66 is: 604,462,992.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,432,175.54 : 1,090,802,900.94 = 438,014,051.66 : x
  2. Step 2: Convert to fraction form
    790,432,175.54/1,090,802,900.94 = 438,014,051.66/x
  3. Step 3: Cross multiply
    790,432,175.54x = 1,090,802,900.94 × 438,014,051.66
  4. Step 4: Simplify right side
    790,432,175.54x = 477,786,998,203,211,072
  5. Step 5: Solve for x
    x = 477,786,998,203,211,072/790,432,175.54
  6. Step 6: Final answer
    x = 604,462,992.51

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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.