Home / 129,552,113.72-194,360,052.18-91,288,361.72

Finding the Fourth Proportional to 129,552,113.72, 194,360,052.18 and 91,288,361.72

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Solution

The fourth proportional to 129,552,113.72, 194,360,052.18 and 91,288,361.72 is: 136,955,007.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,552,113.72 : 194,360,052.18 = 91,288,361.72 : x
  2. Step 2: Convert to fraction form
    129,552,113.72/194,360,052.18 = 91,288,361.72/x
  3. Step 3: Cross multiply
    129,552,113.72x = 194,360,052.18 × 91,288,361.72
  4. Step 4: Simplify right side
    129,552,113.72x = 17,742,810,746,354,116
  5. Step 5: Solve for x
    x = 17,742,810,746,354,116/129,552,113.72
  6. Step 6: Final answer
    x = 136,955,007.82

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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.