Finding the Fourth Proportional to 18,543,423,862.08, 27,815,307,969.56 and 5,278,681,679.32
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Solution
The fourth proportional to 18,543,423,862.08, 27,815,307,969.56 and 5,278,681,679.32 is: 7,918,071,531.75
Step by Step Solution
- Step 1: Write the proportion equation
18,543,423,862.08 : 27,815,307,969.56 = 5,278,681,679.32 : x - Step 2: Convert to fraction form
18,543,423,862.08/27,815,307,969.56 = 5,278,681,679.32/x - Step 3: Cross multiply
18,543,423,862.08x = 27,815,307,969.56 × 5,278,681,679.32 - Step 4: Simplify right side
18,543,423,862.08x = 146,828,156,583,559,954,432 - Step 5: Solve for x
x = 146,828,156,583,559,954,432/18,543,423,862.08 - Step 6: Final answer
x = 7,918,071,531.75
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.