Finding the Fourth Proportional to 19,320,868.47, 26,686,182.74 and 14,085,585.75
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Solution
The fourth proportional to 19,320,868.47, 26,686,182.74 and 14,085,585.75 is: 19,455,156.26
Step by Step Solution
- Step 1: Write the proportion equation
19,320,868.47 : 26,686,182.74 = 14,085,585.75 : x - Step 2: Convert to fraction form
19,320,868.47/26,686,182.74 = 14,085,585.75/x - Step 3: Cross multiply
19,320,868.47x = 26,686,182.74 × 14,085,585.75 - Step 4: Simplify right side
19,320,868.47x = 375,890,515,254,012 - Step 5: Solve for x
x = 375,890,515,254,012/19,320,868.47 - Step 6: Final answer
x = 19,455,156.26
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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.