Finding the Fourth Proportional to 19,753,787.73, 29,778,740.30 and 18,436,995.03
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Solution
The fourth proportional to 19,753,787.73, 29,778,740.30 and 18,436,995.03 is: 27,793,681.61
Step by Step Solution
- Step 1: Write the proportion equation
19,753,787.73 : 29,778,740.30 = 18,436,995.03 : x - Step 2: Convert to fraction form
19,753,787.73/29,778,740.30 = 18,436,995.03/x - Step 3: Cross multiply
19,753,787.73x = 29,778,740.30 × 18,436,995.03 - Step 4: Simplify right side
19,753,787.73x = 549,030,486,818,575.81 - Step 5: Solve for x
x = 549,030,486,818,575.81/19,753,787.73 - Step 6: Final answer
x = 27,793,681.61
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.