Finding the Fourth Proportional to 13,781,602.12, 19,018,611.18 and 7,671,474.04
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Solution
The fourth proportional to 13,781,602.12, 19,018,611.18 and 7,671,474.04 is: 10,586,634.32
Step by Step Solution
- Step 1: Write the proportion equation
13,781,602.12 : 19,018,611.18 = 7,671,474.04 : x - Step 2: Convert to fraction form
13,781,602.12/19,018,611.18 = 7,671,474.04/x - Step 3: Cross multiply
13,781,602.12x = 19,018,611.18 × 7,671,474.04 - Step 4: Simplify right side
13,781,602.12x = 145,900,781,944,223.75 - Step 5: Solve for x
x = 145,900,781,944,223.75/13,781,602.12 - Step 6: Final answer
x = 10,586,634.32
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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.