Finding the Fourth Proportional to 818,400,183.97, 1,129,392,706.98 and 442,056,769.99
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Solution
The fourth proportional to 818,400,183.97, 1,129,392,706.98 and 442,056,769.99 is: 610,038,587.33
Step by Step Solution
- Step 1: Write the proportion equation
818,400,183.97 : 1,129,392,706.98 = 442,056,769.99 : x - Step 2: Convert to fraction form
818,400,183.97/1,129,392,706.98 = 442,056,769.99/x - Step 3: Cross multiply
818,400,183.97x = 1,129,392,706.98 × 442,056,769.99 - Step 4: Simplify right side
818,400,183.97x = 499,255,692,097,841,344 - Step 5: Solve for x
x = 499,255,692,097,841,344/818,400,183.97 - Step 6: Final answer
x = 610,038,587.33
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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.