Finding the Fourth Proportional to 216,878,116.05, 299,283,405.84 and 117,756,594.77
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Solution
The fourth proportional to 216,878,116.05, 299,283,405.84 and 117,756,594.77 is: 162,499,542.98
Step by Step Solution
- Step 1: Write the proportion equation
216,878,116.05 : 299,283,405.84 = 117,756,594.77 : x - Step 2: Convert to fraction form
216,878,116.05/299,283,405.84 = 117,756,594.77/x - Step 3: Cross multiply
216,878,116.05x = 299,283,405.84 × 117,756,594.77 - Step 4: Simplify right side
216,878,116.05x = 35,242,594,741,389,912 - Step 5: Solve for x
x = 35,242,594,741,389,912/216,878,116.05 - Step 6: Final answer
x = 162,499,542.98
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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.