Finding the Fourth Proportional to 108,196,250,835.74, 149,248,792,102.68 and 67,480,474,715.21
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Solution
The fourth proportional to 108,196,250,835.74, 149,248,792,102.68 and 67,480,474,715.21 is: 93,084,365,345.07
Step by Step Solution
- Step 1: Write the proportion equation
108,196,250,835.74 : 149,248,792,102.68 = 67,480,474,715.21 : x - Step 2: Convert to fraction form
108,196,250,835.74/149,248,792,102.68 = 67,480,474,715.21/x - Step 3: Cross multiply
108,196,250,835.74x = 149,248,792,102.68 × 67,480,474,715.21 - Step 4: Simplify right side
108,196,250,835.74x = 10,071,379,341,760,530,481,152 - Step 5: Solve for x
x = 10,071,379,341,760,530,481,152/108,196,250,835.74 - Step 6: Final answer
x = 93,084,365,345.07
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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.