Finding the Fourth Proportional to 19,509,919.68, 26,921,726.76 and 10,806,466.48
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Solution
The fourth proportional to 19,509,919.68, 26,921,726.76 and 10,806,466.48 is: 14,911,836.78
Step by Step Solution
- Step 1: Write the proportion equation
19,509,919.68 : 26,921,726.76 = 10,806,466.48 : x - Step 2: Convert to fraction form
19,509,919.68/26,921,726.76 = 10,806,466.48/x - Step 3: Cross multiply
19,509,919.68x = 26,921,726.76 × 10,806,466.48 - Step 4: Simplify right side
19,509,919.68x = 290,928,737,815,659.06 - Step 5: Solve for x
x = 290,928,737,815,659.06/19,509,919.68 - Step 6: Final answer
x = 14,911,836.78
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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.