Home / 28,347,319.09-42,527,736.47-9,178,081.84

Finding the Fourth Proportional to 28,347,319.09, 42,527,736.47 and 9,178,081.84

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Solution

The fourth proportional to 28,347,319.09, 42,527,736.47 and 9,178,081.84 is: 13,769,310.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,347,319.09 : 42,527,736.47 = 9,178,081.84 : x
  2. Step 2: Convert to fraction form
    28,347,319.09/42,527,736.47 = 9,178,081.84/x
  3. Step 3: Cross multiply
    28,347,319.09x = 42,527,736.47 × 9,178,081.84
  4. Step 4: Simplify right side
    28,347,319.09x = 390,323,045,791,612.69
  5. Step 5: Solve for x
    x = 390,323,045,791,612.69/28,347,319.09
  6. Step 6: Final answer
    x = 13,769,310.76

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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.