Finding the Fourth Proportional to 1,080,159,841.00, 1,490,860,380.93 and 656,683,518.99
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Solution
The fourth proportional to 1,080,159,841.00, 1,490,860,380.93 and 656,683,518.99 is: 906,369,042.92
Step by Step Solution
- Step 1: Write the proportion equation
1,080,159,841.00 : 1,490,860,380.93 = 656,683,518.99 : x - Step 2: Convert to fraction form
1,080,159,841.00/1,490,860,380.93 = 656,683,518.99/x - Step 3: Cross multiply
1,080,159,841.00x = 1,490,860,380.93 × 656,683,518.99 - Step 4: Simplify right side
1,080,159,841.00x = 979,023,441,281,154,304 - Step 5: Solve for x
x = 979,023,441,281,154,304/1,080,159,841.00 - Step 6: Final answer
x = 906,369,042.92
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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.