Finding the Fourth Proportional to 15,978,239,617.05, 22,031,926,351.52 and 11,951,003,601.09
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Solution
The fourth proportional to 15,978,239,617.05, 22,031,926,351.52 and 11,951,003,601.09 is: 16,478,888,630.82
Step by Step Solution
- Step 1: Write the proportion equation
15,978,239,617.05 : 22,031,926,351.52 = 11,951,003,601.09 : x - Step 2: Convert to fraction form
15,978,239,617.05/22,031,926,351.52 = 11,951,003,601.09/x - Step 3: Cross multiply
15,978,239,617.05x = 22,031,926,351.52 × 11,951,003,601.09 - Step 4: Simplify right side
15,978,239,617.05x = 263,303,631,165,905,436,672 - Step 5: Solve for x
x = 263,303,631,165,905,436,672/15,978,239,617.05 - Step 6: Final answer
x = 16,478,888,630.82
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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.