Home / 412,776,601.80-619,164,902.70-381,209,006.40

Finding the Fourth Proportional to 412,776,601.80, 619,164,902.70 and 381,209,006.40

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Solution

The fourth proportional to 412,776,601.80, 619,164,902.70 and 381,209,006.40 is: 571,813,509.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    412,776,601.80 : 619,164,902.70 = 381,209,006.40 : x
  2. Step 2: Convert to fraction form
    412,776,601.80/619,164,902.70 = 381,209,006.40/x
  3. Step 3: Cross multiply
    412,776,601.80x = 619,164,902.70 × 381,209,006.40
  4. Step 4: Simplify right side
    412,776,601.80x = 236,031,237,356,019,680
  5. Step 5: Solve for x
    x = 236,031,237,356,019,680/412,776,601.80
  6. Step 6: Final answer
    x = 571,813,509.60

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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.