Finding the Fourth Proportional to 14,342,228.70, 19,791,699.71 and 7,815,719.06
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Solution
The fourth proportional to 14,342,228.70, 19,791,699.71 and 7,815,719.06 is: 10,785,378.47
Step by Step Solution
- Step 1: Write the proportion equation
14,342,228.70 : 19,791,699.71 = 7,815,719.06 : x - Step 2: Convert to fraction form
14,342,228.70/19,791,699.71 = 7,815,719.06/x - Step 3: Cross multiply
14,342,228.70x = 19,791,699.71 × 7,815,719.06 - Step 4: Simplify right side
14,342,228.70x = 154,686,364,573,824.25 - Step 5: Solve for x
x = 154,686,364,573,824.25/14,342,228.70 - Step 6: Final answer
x = 10,785,378.47
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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.