Finding the Fourth Proportional to 80,852,679.70, 121,284,268.35 and 42,588,927.70
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Solution
The fourth proportional to 80,852,679.70, 121,284,268.35 and 42,588,927.70 is: 63,886,156.34
Step by Step Solution
- Step 1: Write the proportion equation
80,852,679.70 : 121,284,268.35 = 42,588,927.70 : x - Step 2: Convert to fraction form
80,852,679.70/121,284,268.35 = 42,588,927.70/x - Step 3: Cross multiply
80,852,679.70x = 121,284,268.35 × 42,588,927.70 - Step 4: Simplify right side
80,852,679.70x = 5,165,366,935,905,548 - Step 5: Solve for x
x = 5,165,366,935,905,548/80,852,679.70 - Step 6: Final answer
x = 63,886,156.34
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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.