Finding the Fourth Proportional to 42,442,957.11, 63,664,356.18 and 13,299,027.18
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Solution
The fourth proportional to 42,442,957.11, 63,664,356.18 and 13,299,027.18 is: 19,948,515.86
Step by Step Solution
- Step 1: Write the proportion equation
42,442,957.11 : 63,664,356.18 = 13,299,027.18 : x - Step 2: Convert to fraction form
42,442,957.11/63,664,356.18 = 13,299,027.18/x - Step 3: Cross multiply
42,442,957.11x = 63,664,356.18 × 13,299,027.18 - Step 4: Simplify right side
42,442,957.11x = 846,674,003,235,021 - Step 5: Solve for x
x = 846,674,003,235,021/42,442,957.11 - Step 6: Final answer
x = 19,948,515.86
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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.