Finding the Fourth Proportional to 1,772,929,946.70, 2,659,394,920.05 and 805,471,130.70
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Solution
The fourth proportional to 1,772,929,946.70, 2,659,394,920.05 and 805,471,130.70 is: 1,208,206,696.05
Step by Step Solution
- Step 1: Write the proportion equation
1,772,929,946.70 : 2,659,394,920.05 = 805,471,130.70 : x - Step 2: Convert to fraction form
1,772,929,946.70/2,659,394,920.05 = 805,471,130.70/x - Step 3: Cross multiply
1,772,929,946.70x = 2,659,394,920.05 × 805,471,130.70 - Step 4: Simplify right side
1,772,929,946.70x = 2,142,065,833,230,509,824 - Step 5: Solve for x
x = 2,142,065,833,230,509,824/1,772,929,946.70 - Step 6: Final answer
x = 1,208,206,696.05
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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.