Home / 381,404,848,591.53-525,985,143,150.30-278,358,746,927.30

Finding the Fourth Proportional to 381,404,848,591.53, 525,985,143,150.30 and 278,358,746,927.30

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Solution

The fourth proportional to 381,404,848,591.53, 525,985,143,150.30 and 278,358,746,927.30 is: 383,877,042,702.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,404,848,591.53 : 525,985,143,150.30 = 278,358,746,927.30 : x
  2. Step 2: Convert to fraction form
    381,404,848,591.53/525,985,143,150.30 = 278,358,746,927.30/x
  3. Step 3: Cross multiply
    381,404,848,591.53x = 525,985,143,150.30 × 278,358,746,927.30
  4. Step 4: Simplify right side
    381,404,848,591.53x = 146,412,565,349,694,017,896,448
  5. Step 5: Solve for x
    x = 146,412,565,349,694,017,896,448/381,404,848,591.53
  6. Step 6: Final answer
    x = 383,877,042,702.46

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Double scale
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1.5x scale

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.