Finding the Fourth Proportional to 70,062,917.08, 96,686,440.68 and 38,703,123.40
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Solution
The fourth proportional to 70,062,917.08, 96,686,440.68 and 38,703,123.40 is: 53,410,097.68
Step by Step Solution
- Step 1: Write the proportion equation
70,062,917.08 : 96,686,440.68 = 38,703,123.40 : x - Step 2: Convert to fraction form
70,062,917.08/96,686,440.68 = 38,703,123.40/x - Step 3: Cross multiply
70,062,917.08x = 96,686,440.68 × 38,703,123.40 - Step 4: Simplify right side
70,062,917.08x = 3,742,067,244,744,820 - Step 5: Solve for x
x = 3,742,067,244,744,820/70,062,917.08 - Step 6: Final answer
x = 53,410,097.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.