Finding the Fourth Proportional to 124,394,009.41, 171,725,880.80 and 77,366,241.74
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Solution
The fourth proportional to 124,394,009.41, 171,725,880.80 and 77,366,241.74 is: 106,804,066.12
Step by Step Solution
- Step 1: Write the proportion equation
124,394,009.41 : 171,725,880.80 = 77,366,241.74 : x - Step 2: Convert to fraction form
124,394,009.41/171,725,880.80 = 77,366,241.74/x - Step 3: Cross multiply
124,394,009.41x = 171,725,880.80 × 77,366,241.74 - Step 4: Simplify right side
124,394,009.41x = 13,285,786,006,643,998 - Step 5: Solve for x
x = 13,285,786,006,643,998/124,394,009.41 - Step 6: Final answer
x = 106,804,066.12
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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.