Finding the Fourth Proportional to 1,351,844,203.48, 1,864,950,740.31 and 815,696,816.02
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Solution
The fourth proportional to 1,351,844,203.48, 1,864,950,740.31 and 815,696,816.02 is: 1,125,303,031.95
Step by Step Solution
- Step 1: Write the proportion equation
1,351,844,203.48 : 1,864,950,740.31 = 815,696,816.02 : x - Step 2: Convert to fraction form
1,351,844,203.48/1,864,950,740.31 = 815,696,816.02/x - Step 3: Cross multiply
1,351,844,203.48x = 1,864,950,740.31 × 815,696,816.02 - Step 4: Simplify right side
1,351,844,203.48x = 1,521,234,380,903,446,272 - Step 5: Solve for x
x = 1,521,234,380,903,446,272/1,351,844,203.48 - Step 6: Final answer
x = 1,125,303,031.95
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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.