Home / 129,585,612.40-194,380,722.60-38,710,322.80

Finding the Fourth Proportional to 129,585,612.40, 194,380,722.60 and 38,710,322.80

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Solution

The fourth proportional to 129,585,612.40, 194,380,722.60 and 38,710,322.80 is: 58,066,172.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,585,612.40 : 194,380,722.60 = 38,710,322.80 : x
  2. Step 2: Convert to fraction form
    129,585,612.40/194,380,722.60 = 38,710,322.80/x
  3. Step 3: Cross multiply
    129,585,612.40x = 194,380,722.60 × 38,710,322.80
  4. Step 4: Simplify right side
    129,585,612.40x = 7,524,540,517,943,254
  5. Step 5: Solve for x
    x = 7,524,540,517,943,254/129,585,612.40
  6. Step 6: Final answer
    x = 58,066,172.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.