Home / 380,838,824,391.38-525,541,715,814.15-207,224,645,643.96

Finding the Fourth Proportional to 380,838,824,391.38, 525,541,715,814.15 and 207,224,645,643.96

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Solution

The fourth proportional to 380,838,824,391.38, 525,541,715,814.15 and 207,224,645,643.96 is: 285,961,380,131.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,838,824,391.38 : 525,541,715,814.15 = 207,224,645,643.96 : x
  2. Step 2: Convert to fraction form
    380,838,824,391.38/525,541,715,814.15 = 207,224,645,643.96/x
  3. Step 3: Cross multiply
    380,838,824,391.38x = 525,541,715,814.15 × 207,224,645,643.96
  4. Step 4: Simplify right side
    380,838,824,391.38x = 108,905,195,830,705,962,090,496
  5. Step 5: Solve for x
    x = 108,905,195,830,705,962,090,496/380,838,824,391.38
  6. Step 6: Final answer
    x = 285,961,380,131.73

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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.