Finding the Fourth Proportional to 85,414,862.26, 128,326,689.95 and 54,769,482.84
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Solution
The fourth proportional to 85,414,862.26, 128,326,689.95 and 54,769,482.84 is: 82,285,286.86
Step by Step Solution
- Step 1: Write the proportion equation
85,414,862.26 : 128,326,689.95 = 54,769,482.84 : x - Step 2: Convert to fraction form
85,414,862.26/128,326,689.95 = 54,769,482.84/x - Step 3: Cross multiply
85,414,862.26x = 128,326,689.95 × 54,769,482.84 - Step 4: Simplify right side
85,414,862.26x = 7,028,386,443,130,526 - Step 5: Solve for x
x = 7,028,386,443,130,526/85,414,862.26 - Step 6: Final answer
x = 82,285,286.86
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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.