Finding the Fourth Proportional to 979,360,296,751.20, 1,351,521,291,727.30 and 539,888,026,438.35
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Solution
The fourth proportional to 979,360,296,751.20, 1,351,521,291,727.30 and 539,888,026,438.35 is: 745,047,726,868.83
Step by Step Solution
- Step 1: Write the proportion equation
979,360,296,751.20 : 1,351,521,291,727.30 = 539,888,026,438.35 : x - Step 2: Convert to fraction form
979,360,296,751.20/1,351,521,291,727.30 = 539,888,026,438.35/x - Step 3: Cross multiply
979,360,296,751.20x = 1,351,521,291,727.30 × 539,888,026,438.35 - Step 4: Simplify right side
979,360,296,751.20x = 729,670,162,880,061,432,135,680 - Step 5: Solve for x
x = 729,670,162,880,061,432,135,680/979,360,296,751.20 - Step 6: Final answer
x = 745,047,726,868.83
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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.