Finding the Fourth Proportional to 170,878,434.50, 235,813,371.84 and 92,561,987.99
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Solution
The fourth proportional to 170,878,434.50, 235,813,371.84 and 92,561,987.99 is: 127,736,156.74
Step by Step Solution
- Step 1: Write the proportion equation
170,878,434.50 : 235,813,371.84 = 92,561,987.99 : x - Step 2: Convert to fraction form
170,878,434.50/235,813,371.84 = 92,561,987.99/x - Step 3: Cross multiply
170,878,434.50x = 235,813,371.84 × 92,561,987.99 - Step 4: Simplify right side
170,878,434.50x = 21,827,354,492,725,020 - Step 5: Solve for x
x = 21,827,354,492,725,020/170,878,434.50 - Step 6: Final answer
x = 127,736,156.74
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.