Home / 21,243,351,571.12-29,319,663,552.60-12,670,328,367.28

Finding the Fourth Proportional to 21,243,351,571.12, 29,319,663,552.60 and 12,670,328,367.28

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Solution

The fourth proportional to 21,243,351,571.12, 29,319,663,552.60 and 12,670,328,367.28 is: 17,487,342,502.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,243,351,571.12 : 29,319,663,552.60 = 12,670,328,367.28 : x
  2. Step 2: Convert to fraction form
    21,243,351,571.12/29,319,663,552.60 = 12,670,328,367.28/x
  3. Step 3: Cross multiply
    21,243,351,571.12x = 29,319,663,552.60 × 12,670,328,367.28
  4. Step 4: Simplify right side
    21,243,351,571.12x = 371,489,764,829,613,260,800
  5. Step 5: Solve for x
    x = 371,489,764,829,613,260,800/21,243,351,571.12
  6. Step 6: Final answer
    x = 17,487,342,502.71

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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.