Finding the Fourth Proportional to 1,778,772,990.80, 2,454,706,678.57 and 985,938,084.84
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Solution
The fourth proportional to 1,778,772,990.80, 2,454,706,678.57 and 985,938,084.84 is: 1,360,594,530.07
Step by Step Solution
- Step 1: Write the proportion equation
1,778,772,990.80 : 2,454,706,678.57 = 985,938,084.84 : x - Step 2: Convert to fraction form
1,778,772,990.80/2,454,706,678.57 = 985,938,084.84/x - Step 3: Cross multiply
1,778,772,990.80x = 2,454,706,678.57 × 985,938,084.84 - Step 4: Simplify right side
1,778,772,990.80x = 2,420,188,801,511,705,088 - Step 5: Solve for x
x = 2,420,188,801,511,705,088/1,778,772,990.80 - Step 6: Final answer
x = 1,360,594,530.07
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1.5x scale
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.