Home / 79,815,642,889.22-119,723,774,945.10-19,309,823,343.58

Finding the Fourth Proportional to 79,815,642,889.22, 119,723,774,945.10 and 19,309,823,343.58

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Solution

The fourth proportional to 79,815,642,889.22, 119,723,774,945.10 and 19,309,823,343.58 is: 28,964,810,161.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,815,642,889.22 : 119,723,774,945.10 = 19,309,823,343.58 : x
  2. Step 2: Convert to fraction form
    79,815,642,889.22/119,723,774,945.10 = 19,309,823,343.58/x
  3. Step 3: Cross multiply
    79,815,642,889.22x = 119,723,774,945.10 × 19,309,823,343.58
  4. Step 4: Simplify right side
    79,815,642,889.22x = 2,311,844,944,216,051,154,944
  5. Step 5: Solve for x
    x = 2,311,844,944,216,051,154,944/79,815,642,889.22
  6. Step 6: Final answer
    x = 28,964,810,161.65

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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.