Home / 7,984,939,012.45-11,983,293,444.11-3,787,904,987.17

Finding the Fourth Proportional to 7,984,939,012.45, 11,983,293,444.11 and 3,787,904,987.17

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Solution

The fourth proportional to 7,984,939,012.45, 11,983,293,444.11 and 3,787,904,987.17 is: 5,684,649,178.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,984,939,012.45 : 11,983,293,444.11 = 3,787,904,987.17 : x
  2. Step 2: Convert to fraction form
    7,984,939,012.45/11,983,293,444.11 = 3,787,904,987.17/x
  3. Step 3: Cross multiply
    7,984,939,012.45x = 11,983,293,444.11 × 3,787,904,987.17
  4. Step 4: Simplify right side
    7,984,939,012.45x = 45,391,576,999,616,937,984
  5. Step 5: Solve for x
    x = 45,391,576,999,616,937,984/7,984,939,012.45
  6. Step 6: Final answer
    x = 5,684,649,178.77

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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.