Home / 129,981,328.16-179,393,484.78-82,301,014.34

Finding the Fourth Proportional to 129,981,328.16, 179,393,484.78 and 82,301,014.34

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Solution

The fourth proportional to 129,981,328.16, 179,393,484.78 and 82,301,014.34 is: 113,587,589.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,981,328.16 : 179,393,484.78 = 82,301,014.34 : x
  2. Step 2: Convert to fraction form
    129,981,328.16/179,393,484.78 = 82,301,014.34/x
  3. Step 3: Cross multiply
    129,981,328.16x = 179,393,484.78 × 82,301,014.34
  4. Step 4: Simplify right side
    129,981,328.16x = 14,764,265,763,381,352
  5. Step 5: Solve for x
    x = 14,764,265,763,381,352/129,981,328.16
  6. Step 6: Final answer
    x = 113,587,589.64

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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.