Finding the Fourth Proportional to 124,017,191.68, 171,142,366.32 and 68,261,420
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Solution
The fourth proportional to 124,017,191.68, 171,142,366.32 and 68,261,420 is: 94,200,012.02
Step by Step Solution
- Step 1: Write the proportion equation
124,017,191.68 : 171,142,366.32 = 68,261,420 : x - Step 2: Convert to fraction form
124,017,191.68/171,142,366.32 = 68,261,420/x - Step 3: Cross multiply
124,017,191.68x = 171,142,366.32 × 68,261,420 - Step 4: Simplify right side
124,017,191.68x = 11,682,420,947,163,374 - Step 5: Solve for x
x = 11,682,420,947,163,374/124,017,191.68 - Step 6: Final answer
x = 94,200,012.02
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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.