Home / 381,404,848,592.53-525,985,143,151.68-278,358,746,928.30

Finding the Fourth Proportional to 381,404,848,592.53, 525,985,143,151.68 and 278,358,746,928.30

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Solution

The fourth proportional to 381,404,848,592.53, 525,985,143,151.68 and 278,358,746,928.30 is: 383,877,042,703.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,404,848,592.53 : 525,985,143,151.68 = 278,358,746,928.30 : x
  2. Step 2: Convert to fraction form
    381,404,848,592.53/525,985,143,151.68 = 278,358,746,928.30/x
  3. Step 3: Cross multiply
    381,404,848,592.53x = 525,985,143,151.68 × 278,358,746,928.30
  4. Step 4: Simplify right side
    381,404,848,592.53x = 146,412,565,350,604,131,532,800
  5. Step 5: Solve for x
    x = 146,412,565,350,604,131,532,800/381,404,848,592.53
  6. Step 6: Final answer
    x = 383,877,042,703.83

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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.