Home / 312,062,674.19-430,645,415.40-179,903,040.57

Finding the Fourth Proportional to 312,062,674.19, 430,645,415.40 and 179,903,040.57

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Solution

The fourth proportional to 312,062,674.19, 430,645,415.40 and 179,903,040.57 is: 248,265,576.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,062,674.19 : 430,645,415.40 = 179,903,040.57 : x
  2. Step 2: Convert to fraction form
    312,062,674.19/430,645,415.40 = 179,903,040.57/x
  3. Step 3: Cross multiply
    312,062,674.19x = 430,645,415.40 × 179,903,040.57
  4. Step 4: Simplify right side
    312,062,674.19x = 77,474,419,637,990,688
  5. Step 5: Solve for x
    x = 77,474,419,637,990,688/312,062,674.19
  6. Step 6: Final answer
    x = 248,265,576.27

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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.