Home / 129,831,784.32-194,578,107.43-99,013,520.73

Finding the Fourth Proportional to 129,831,784.32, 194,578,107.43 and 99,013,520.73

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Solution

The fourth proportional to 129,831,784.32, 194,578,107.43 and 99,013,520.73 is: 148,390,962.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,831,784.32 : 194,578,107.43 = 99,013,520.73 : x
  2. Step 2: Convert to fraction form
    129,831,784.32/194,578,107.43 = 99,013,520.73/x
  3. Step 3: Cross multiply
    129,831,784.32x = 194,578,107.43 × 99,013,520.73
  4. Step 4: Simplify right side
    129,831,784.32x = 19,265,863,473,624,472
  5. Step 5: Solve for x
    x = 19,265,863,473,624,472/129,831,784.32
  6. Step 6: Final answer
    x = 148,390,962.77

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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.