Home / 371,619,099.35-512,708,833.28-210,665,815.67

Finding the Fourth Proportional to 371,619,099.35, 512,708,833.28 and 210,665,815.67

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Solution

The fourth proportional to 371,619,099.35, 512,708,833.28 and 210,665,815.67 is: 290,647,667.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,619,099.35 : 512,708,833.28 = 210,665,815.67 : x
  2. Step 2: Convert to fraction form
    371,619,099.35/512,708,833.28 = 210,665,815.67/x
  3. Step 3: Cross multiply
    371,619,099.35x = 512,708,833.28 × 210,665,815.67
  4. Step 4: Simplify right side
    371,619,099.35x = 108,010,224,563,091,904
  5. Step 5: Solve for x
    x = 108,010,224,563,091,904/371,619,099.35
  6. Step 6: Final answer
    x = 290,647,667.88

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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.