Home / 311,265,728.46-429,546,341.21-170,137,875.69

Finding the Fourth Proportional to 311,265,728.46, 429,546,341.21 and 170,137,875.69

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Solution

The fourth proportional to 311,265,728.46, 429,546,341.21 and 170,137,875.69 is: 234,790,069.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,265,728.46 : 429,546,341.21 = 170,137,875.69 : x
  2. Step 2: Convert to fraction form
    311,265,728.46/429,546,341.21 = 170,137,875.69/x
  3. Step 3: Cross multiply
    311,265,728.46x = 429,546,341.21 × 170,137,875.69
  4. Step 4: Simplify right side
    311,265,728.46x = 73,082,102,003,030,608
  5. Step 5: Solve for x
    x = 73,082,102,003,030,608/311,265,728.46
  6. Step 6: Final answer
    x = 234,790,069.45

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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.