Finding the Fourth Proportional to 1,415,946,763.52, 1,953,999,553.92 and 821,351,502.08
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Solution
The fourth proportional to 1,415,946,763.52, 1,953,999,553.92 and 821,351,502.08 is: 1,133,461,024.12
Step by Step Solution
- Step 1: Write the proportion equation
1,415,946,763.52 : 1,953,999,553.92 = 821,351,502.08 : x - Step 2: Convert to fraction form
1,415,946,763.52/1,953,999,553.92 = 821,351,502.08/x - Step 3: Cross multiply
1,415,946,763.52x = 1,953,999,553.92 × 821,351,502.08 - Step 4: Simplify right side
1,415,946,763.52x = 1,604,920,468,675,842,048 - Step 5: Solve for x
x = 1,604,920,468,675,842,048/1,415,946,763.52 - Step 6: Final answer
x = 1,133,461,024.12
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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.