Home / 639,566,681.41-959,204,990.93-289,581,706.19

Finding the Fourth Proportional to 639,566,681.41, 959,204,990.93 and 289,581,706.19

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Solution

The fourth proportional to 639,566,681.41, 959,204,990.93 and 289,581,706.19 is: 434,306,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,566,681.41 : 959,204,990.93 = 289,581,706.19 : x
  2. Step 2: Convert to fraction form
    639,566,681.41/959,204,990.93 = 289,581,706.19/x
  3. Step 3: Cross multiply
    639,566,681.41x = 959,204,990.93 × 289,581,706.19
  4. Step 4: Simplify right side
    639,566,681.41x = 277,768,217,860,422,976
  5. Step 5: Solve for x
    x = 277,768,217,860,422,976/639,566,681.41
  6. Step 6: Final answer
    x = 434,306,892.36

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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.