Finding the Fourth Proportional to 3,889,908,959.16, 5,831,593,747.88 and 3,151,146,821.75
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Solution
The fourth proportional to 3,889,908,959.16, 5,831,593,747.88 and 3,151,146,821.75 is: 4,724,071,513.57
Step by Step Solution
- Step 1: Write the proportion equation
3,889,908,959.16 : 5,831,593,747.88 = 3,151,146,821.75 : x - Step 2: Convert to fraction form
3,889,908,959.16/5,831,593,747.88 = 3,151,146,821.75/x - Step 3: Cross multiply
3,889,908,959.16x = 5,831,593,747.88 × 3,151,146,821.75 - Step 4: Simplify right side
3,889,908,959.16x = 18,376,208,104,340,074,496 - Step 5: Solve for x
x = 18,376,208,104,340,074,496/3,889,908,959.16 - Step 6: Final answer
x = 4,724,071,513.57
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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.