Finding the Fourth Proportional to 42,442,948.74, 63,664,343.64 and 13,299,018.84
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Solution
The fourth proportional to 42,442,948.74, 63,664,343.64 and 13,299,018.84 is: 19,948,503.36
Step by Step Solution
- Step 1: Write the proportion equation
42,442,948.74 : 63,664,343.64 = 13,299,018.84 : x - Step 2: Convert to fraction form
42,442,948.74/63,664,343.64 = 13,299,018.84/x - Step 3: Cross multiply
42,442,948.74x = 63,664,343.64 × 13,299,018.84 - Step 4: Simplify right side
42,442,948.74x = 846,673,305,504,594.12 - Step 5: Solve for x
x = 846,673,305,504,594.12/42,442,948.74 - Step 6: Final answer
x = 19,948,503.36
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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.