Home / 639,156,346.03-959,010,716.11-343,706,141.51

Finding the Fourth Proportional to 639,156,346.03, 959,010,716.11 and 343,706,141.51

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Solution

The fourth proportional to 639,156,346.03, 959,010,716.11 and 343,706,141.51 is: 515,707,737.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,156,346.03 : 959,010,716.11 = 343,706,141.51 : x
  2. Step 2: Convert to fraction form
    639,156,346.03/959,010,716.11 = 343,706,141.51/x
  3. Step 3: Cross multiply
    639,156,346.03x = 959,010,716.11 × 343,706,141.51
  4. Step 4: Simplify right side
    639,156,346.03x = 329,617,872,900,910,080
  5. Step 5: Solve for x
    x = 329,617,872,900,910,080/639,156,346.03
  6. Step 6: Final answer
    x = 515,707,737.16

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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.