Finding the Fourth Proportional to 98,775,430,121.07, 136,310,093,368.74 and 55,955,912,937.66
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Solution
The fourth proportional to 98,775,430,121.07, 136,310,093,368.74 and 55,955,912,937.66 is: 77,219,159,741.61
Step by Step Solution
- Step 1: Write the proportion equation
98,775,430,121.07 : 136,310,093,368.74 = 55,955,912,937.66 : x - Step 2: Convert to fraction form
98,775,430,121.07/136,310,093,368.74 = 55,955,912,937.66/x - Step 3: Cross multiply
98,775,430,121.07x = 136,310,093,368.74 × 55,955,912,937.66 - Step 4: Simplify right side
98,775,430,121.07x = 7,627,355,717,065,521,496,064 - Step 5: Solve for x
x = 7,627,355,717,065,521,496,064/98,775,430,121.07 - Step 6: Final answer
x = 77,219,159,741.61
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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.