Home / 312,062,667.42-430,645,406.09-179,903,033.81

Finding the Fourth Proportional to 312,062,667.42, 430,645,406.09 and 179,903,033.81

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Solution

The fourth proportional to 312,062,667.42, 430,645,406.09 and 179,903,033.81 is: 248,265,566.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,062,667.42 : 430,645,406.09 = 179,903,033.81 : x
  2. Step 2: Convert to fraction form
    312,062,667.42/430,645,406.09 = 179,903,033.81/x
  3. Step 3: Cross multiply
    312,062,667.42x = 430,645,406.09 × 179,903,033.81
  4. Step 4: Simplify right side
    312,062,667.42x = 77,474,415,050,492,624
  5. Step 5: Solve for x
    x = 77,474,415,050,492,624/312,062,667.42
  6. Step 6: Final answer
    x = 248,265,566.95

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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.