Home / 28,347,347.09-42,527,778.60-9,178,109.84

Finding the Fourth Proportional to 28,347,347.09, 42,527,778.60 and 9,178,109.84

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Solution

The fourth proportional to 28,347,347.09, 42,527,778.60 and 9,178,109.84 is: 13,769,352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,347.09 : 42,527,778.60 = 9,178,109.84 : x
  2. Step 2: Convert to fraction form
    28,347,347.09/42,527,778.60 = 9,178,109.84/x
  3. Step 3: Cross multiply
    28,347,347.09x = 42,527,778.60 × 9,178,109.84
  4. Step 4: Simplify right side
    28,347,347.09x = 390,324,623,242,001.44
  5. Step 5: Solve for x
    x = 390,324,623,242,001.44/28,347,347.09
  6. Step 6: Final answer
    x = 13,769,352.81

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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.