Finding the Fourth Proportional to 1,874,513,211.44, 2,586,828,175.80 and 1,039,135,665.20
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Solution
The fourth proportional to 1,874,513,211.44, 2,586,828,175.80 and 1,039,135,665.20 is: 1,434,007,186.94
Step by Step Solution
- Step 1: Write the proportion equation
1,874,513,211.44 : 2,586,828,175.80 = 1,039,135,665.20 : x - Step 2: Convert to fraction form
1,874,513,211.44/2,586,828,175.80 = 1,039,135,665.20/x - Step 3: Cross multiply
1,874,513,211.44x = 2,586,828,175.80 × 1,039,135,665.20 - Step 4: Simplify right side
1,874,513,211.44x = 2,688,065,417,218,035,712 - Step 5: Solve for x
x = 2,688,065,417,218,035,712/1,874,513,211.44 - Step 6: Final answer
x = 1,434,007,186.94
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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.