Finding the Fourth Proportional to 818,400,307.76, 1,129,392,876.99 and 442,056,893.28
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Solution
The fourth proportional to 818,400,307.76, 1,129,392,876.99 and 442,056,893.28 is: 610,038,757.02
Step by Step Solution
- Step 1: Write the proportion equation
818,400,307.76 : 1,129,392,876.99 = 442,056,893.28 : x - Step 2: Convert to fraction form
818,400,307.76/1,129,392,876.99 = 442,056,893.28/x - Step 3: Cross multiply
818,400,307.76x = 1,129,392,876.99 × 442,056,893.28 - Step 4: Simplify right side
818,400,307.76x = 499,255,906,494,760,576 - Step 5: Solve for x
x = 499,255,906,494,760,576/818,400,307.76 - Step 6: Final answer
x = 610,038,757.02
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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.