Home / 28,347,321.09-42,527,739.47-9,178,083.84

Finding the Fourth Proportional to 28,347,321.09, 42,527,739.47 and 9,178,083.84

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Solution

The fourth proportional to 28,347,321.09, 42,527,739.47 and 9,178,083.84 is: 13,769,313.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,321.09 : 42,527,739.47 = 9,178,083.84 : x
  2. Step 2: Convert to fraction form
    28,347,321.09/42,527,739.47 = 9,178,083.84/x
  3. Step 3: Cross multiply
    28,347,321.09x = 42,527,739.47 × 9,178,083.84
  4. Step 4: Simplify right side
    28,347,321.09x = 390,323,158,335,446.75
  5. Step 5: Solve for x
    x = 390,323,158,335,446.75/28,347,321.09
  6. Step 6: Final answer
    x = 13,769,313.76

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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.