Finding the Fourth Proportional to 979,360,296,752.75, 1,351,521,291,729.40 and 539,888,026,439.85
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Solution
The fourth proportional to 979,360,296,752.75, 1,351,521,291,729.40 and 539,888,026,439.85 is: 745,047,726,870.88
Step by Step Solution
- Step 1: Write the proportion equation
979,360,296,752.75 : 1,351,521,291,729.40 = 539,888,026,439.85 : x - Step 2: Convert to fraction form
979,360,296,752.75/1,351,521,291,729.40 = 539,888,026,439.85/x - Step 3: Cross multiply
979,360,296,752.75x = 1,351,521,291,729.40 × 539,888,026,439.85 - Step 4: Simplify right side
979,360,296,752.75x = 729,670,162,883,222,393,847,808 - Step 5: Solve for x
x = 729,670,162,883,222,393,847,808/979,360,296,752.75 - Step 6: Final answer
x = 745,047,726,870.88
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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.