Finding the Fourth Proportional to 1,415,946,655.52, 1,953,999,404.88 and 821,351,394.08
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Solution
The fourth proportional to 1,415,946,655.52, 1,953,999,404.88 and 821,351,394.08 is: 1,133,460,875.08
Step by Step Solution
- Step 1: Write the proportion equation
1,415,946,655.52 : 1,953,999,404.88 = 821,351,394.08 : x - Step 2: Convert to fraction form
1,415,946,655.52/1,953,999,404.88 = 821,351,394.08/x - Step 3: Cross multiply
1,415,946,655.52x = 1,953,999,404.88 × 821,351,394.08 - Step 4: Simplify right side
1,415,946,655.52x = 1,604,920,135,229,678,592 - Step 5: Solve for x
x = 1,604,920,135,229,678,592/1,415,946,655.52 - Step 6: Final answer
x = 1,133,460,875.08
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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.