Home / 7,978,175,999.40-11,967,263,999.10-3,835,487,116.20

Finding the Fourth Proportional to 7,978,175,999.40, 11,967,263,999.10 and 3,835,487,116.20

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Solution

The fourth proportional to 7,978,175,999.40, 11,967,263,999.10 and 3,835,487,116.20 is: 5,753,230,674.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,978,175,999.40 : 11,967,263,999.10 = 3,835,487,116.20 : x
  2. Step 2: Convert to fraction form
    7,978,175,999.40/11,967,263,999.10 = 3,835,487,116.20/x
  3. Step 3: Cross multiply
    7,978,175,999.40x = 11,967,263,999.10 × 3,835,487,116.20
  4. Step 4: Simplify right side
    7,978,175,999.40x = 45,900,286,884,712,136,704
  5. Step 5: Solve for x
    x = 45,900,286,884,712,136,704/7,978,175,999.40
  6. Step 6: Final answer
    x = 5,753,230,674.30

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1.5x scale

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.