Finding the Fourth Proportional to 889,629,031.96, 1,226,960,106.30 and 626,183,128.60
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Solution
The fourth proportional to 889,629,031.96, 1,226,960,106.30 and 626,183,128.60 is: 863,620,329.86
Step by Step Solution
- Step 1: Write the proportion equation
889,629,031.96 : 1,226,960,106.30 = 626,183,128.60 : x - Step 2: Convert to fraction form
889,629,031.96/1,226,960,106.30 = 626,183,128.60/x - Step 3: Cross multiply
889,629,031.96x = 1,226,960,106.30 × 626,183,128.60 - Step 4: Simplify right side
889,629,031.96x = 768,301,718,030,322,560 - Step 5: Solve for x
x = 768,301,718,030,322,560/889,629,031.96 - Step 6: Final answer
x = 863,620,329.86
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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.