Finding the Fourth Proportional to 5,280,304,172.90, 7,920,456,259.35 and 2,659,095,443.30
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Solution
The fourth proportional to 5,280,304,172.90, 7,920,456,259.35 and 2,659,095,443.30 is: 3,988,643,164.95
Step by Step Solution
- Step 1: Write the proportion equation
5,280,304,172.90 : 7,920,456,259.35 = 2,659,095,443.30 : x - Step 2: Convert to fraction form
5,280,304,172.90/7,920,456,259.35 = 2,659,095,443.30/x - Step 3: Cross multiply
5,280,304,172.90x = 7,920,456,259.35 × 2,659,095,443.30 - Step 4: Simplify right side
5,280,304,172.90x = 21,061,249,148,094,550,016 - Step 5: Solve for x
x = 21,061,249,148,094,550,016/5,280,304,172.90 - Step 6: Final answer
x = 3,988,643,164.95
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1.5x scale
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.