Finding the Fourth Proportional to 13,357,938, 18,433,990.08 and 7,246,366.56
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Solution
The fourth proportional to 13,357,938, 18,433,990.08 and 7,246,366.56 is: 10,000,005.19
Step by Step Solution
- Step 1: Write the proportion equation
13,357,938 : 18,433,990.08 = 7,246,366.56 : x - Step 2: Convert to fraction form
13,357,938/18,433,990.08 = 7,246,366.56/x - Step 3: Cross multiply
13,357,938x = 18,433,990.08 × 7,246,366.56 - Step 4: Simplify right side
13,357,938x = 133,579,449,283,083.70 - Step 5: Solve for x
x = 133,579,449,283,083.70/13,357,938 - Step 6: Final answer
x = 10,000,005.19
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1.5x scale
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.