Home / 80,457,788.65-120,686,682.98-19,873,514.65

Finding the Fourth Proportional to 80,457,788.65, 120,686,682.98 and 19,873,514.65

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Solution

The fourth proportional to 80,457,788.65, 120,686,682.98 and 19,873,514.65 is: 29,810,271.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,457,788.65 : 120,686,682.98 = 19,873,514.65 : x
  2. Step 2: Convert to fraction form
    80,457,788.65/120,686,682.98 = 19,873,514.65/x
  3. Step 3: Cross multiply
    80,457,788.65x = 120,686,682.98 × 19,873,514.65
  4. Step 4: Simplify right side
    80,457,788.65x = 2,398,468,562,262,935.50
  5. Step 5: Solve for x
    x = 2,398,468,562,262,935.50/80,457,788.65
  6. Step 6: Final answer
    x = 29,810,271.98

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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.