Finding the Fourth Proportional to 77,921,454.74, 116,649,159.93 and 47,122,824.96
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Solution
The fourth proportional to 77,921,454.74, 116,649,159.93 and 47,122,824.96 is: 70,543,317.80
Step by Step Solution
- Step 1: Write the proportion equation
77,921,454.74 : 116,649,159.93 = 47,122,824.96 : x - Step 2: Convert to fraction form
77,921,454.74/116,649,159.93 = 47,122,824.96/x - Step 3: Cross multiply
77,921,454.74x = 116,649,159.93 × 47,122,824.96 - Step 4: Simplify right side
77,921,454.74x = 5,496,837,945,112,436 - Step 5: Solve for x
x = 5,496,837,945,112,436/77,921,454.74 - Step 6: Final answer
x = 70,543,317.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.