Finding the Fourth Proportional to 219,378,879,356.93, 302,745,307,825.95 and 121,722,288,526.69
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Solution
The fourth proportional to 219,378,879,356.93, 302,745,307,825.95 and 121,722,288,526.69 is: 167,978,119,941.69
Step by Step Solution
- Step 1: Write the proportion equation
219,378,879,356.93 : 302,745,307,825.95 = 121,722,288,526.69 : x - Step 2: Convert to fraction form
219,378,879,356.93/302,745,307,825.95 = 121,722,288,526.69/x - Step 3: Cross multiply
219,378,879,356.93x = 302,745,307,825.95 × 121,722,288,526.69 - Step 4: Simplify right side
219,378,879,356.93x = 36,850,851,709,291,868,454,912 - Step 5: Solve for x
x = 36,850,851,709,291,868,454,912/219,378,879,356.93 - Step 6: Final answer
x = 167,978,119,941.69
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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.