Home / 78,919,956,139.96-118,373,980,262.82-25,134,918,290.20

Finding the Fourth Proportional to 78,919,956,139.96, 118,373,980,262.82 and 25,134,918,290.20

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Solution

The fourth proportional to 78,919,956,139.96, 118,373,980,262.82 and 25,134,918,290.20 is: 37,700,481,185.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,919,956,139.96 : 118,373,980,262.82 = 25,134,918,290.20 : x
  2. Step 2: Convert to fraction form
    78,919,956,139.96/118,373,980,262.82 = 25,134,918,290.20/x
  3. Step 3: Cross multiply
    78,919,956,139.96x = 118,373,980,262.82 × 25,134,918,290.20
  4. Step 4: Simplify right side
    78,919,956,139.96x = 2,975,320,321,591,728,406,528
  5. Step 5: Solve for x
    x = 2,975,320,321,591,728,406,528/78,919,956,139.96
  6. Step 6: Final answer
    x = 37,700,481,185.20

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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.