Finding the Fourth Proportional to 170,878,426.49, 235,813,360.79 and 92,561,979.98
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Solution
The fourth proportional to 170,878,426.49, 235,813,360.79 and 92,561,979.98 is: 127,736,145.68
Step by Step Solution
- Step 1: Write the proportion equation
170,878,426.49 : 235,813,360.79 = 92,561,979.98 : x - Step 2: Convert to fraction form
170,878,426.49/235,813,360.79 = 92,561,979.98/x - Step 3: Cross multiply
170,878,426.49x = 235,813,360.79 × 92,561,979.98 - Step 4: Simplify right side
170,878,426.49x = 21,827,351,580,460,496 - Step 5: Solve for x
x = 21,827,351,580,460,496/170,878,426.49 - Step 6: Final answer
x = 127,736,145.68
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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.