Home / 8,178,938,707.81-12,251,227,170-5,189,462,999.88

Finding the Fourth Proportional to 8,178,938,707.81, 12,251,227,170 and 5,189,462,999.88

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Solution

The fourth proportional to 8,178,938,707.81, 12,251,227,170 and 5,189,462,999.88 is: 7,773,293,378.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178,938,707.81 : 12,251,227,170 = 5,189,462,999.88 : x
  2. Step 2: Convert to fraction form
    8,178,938,707.81/12,251,227,170 = 5,189,462,999.88/x
  3. Step 3: Cross multiply
    8,178,938,707.81x = 12,251,227,170 × 5,189,462,999.88
  4. Step 4: Simplify right side
    8,178,938,707.81x = 63,577,290,101,839,560,704
  5. Step 5: Solve for x
    x = 63,577,290,101,839,560,704/8,178,938,707.81
  6. Step 6: Final answer
    x = 7,773,293,378.65

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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.