Finding the Fourth Proportional to 1,351,844,199.54, 1,864,950,734.88 and 815,696,812.08
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Solution
The fourth proportional to 1,351,844,199.54, 1,864,950,734.88 and 815,696,812.08 is: 1,125,303,026.52
Step by Step Solution
- Step 1: Write the proportion equation
1,351,844,199.54 : 1,864,950,734.88 = 815,696,812.08 : x - Step 2: Convert to fraction form
1,351,844,199.54/1,864,950,734.88 = 815,696,812.08/x - Step 3: Cross multiply
1,351,844,199.54x = 1,864,950,734.88 × 815,696,812.08 - Step 4: Simplify right side
1,351,844,199.54x = 1,521,234,369,127,869,440 - Step 5: Solve for x
x = 1,521,234,369,127,869,440/1,351,844,199.54 - Step 6: Final answer
x = 1,125,303,026.52
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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.