Home / 28,347,346.09-42,527,777.10-9,178,108.84

Finding the Fourth Proportional to 28,347,346.09, 42,527,777.10 and 9,178,108.84

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Solution

The fourth proportional to 28,347,346.09, 42,527,777.10 and 9,178,108.84 is: 13,769,351.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,346.09 : 42,527,777.10 = 9,178,108.84 : x
  2. Step 2: Convert to fraction form
    28,347,346.09/42,527,777.10 = 9,178,108.84/x
  3. Step 3: Cross multiply
    28,347,346.09x = 42,527,777.10 × 9,178,108.84
  4. Step 4: Simplify right side
    28,347,346.09x = 390,324,566,947,059.56
  5. Step 5: Solve for x
    x = 390,324,566,947,059.56/28,347,346.09
  6. Step 6: Final answer
    x = 13,769,351.31

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1.5x scale

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.