Home / 28,869,998.74-39,840,597.36-15,817,751.86

Finding the Fourth Proportional to 28,869,998.74, 39,840,597.36 and 15,817,751.86

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Solution

The fourth proportional to 28,869,998.74, 39,840,597.36 and 15,817,751.86 is: 21,828,497.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,869,998.74 : 39,840,597.36 = 15,817,751.86 : x
  2. Step 2: Convert to fraction form
    28,869,998.74/39,840,597.36 = 15,817,751.86/x
  3. Step 3: Cross multiply
    28,869,998.74x = 39,840,597.36 × 15,817,751.86
  4. Step 4: Simplify right side
    28,869,998.74x = 630,188,682,994,651
  5. Step 5: Solve for x
    x = 630,188,682,994,651/28,869,998.74
  6. Step 6: Final answer
    x = 21,828,497.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.