Finding the Fourth Proportional to 216,811,278.43, 299,199,946.67 and 117,692,094.47
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Solution
The fourth proportional to 216,811,278.43, 299,199,946.67 and 117,692,094.47 is: 162,415,297.96
Step by Step Solution
- Step 1: Write the proportion equation
216,811,278.43 : 299,199,946.67 = 117,692,094.47 : x - Step 2: Convert to fraction form
216,811,278.43/299,199,946.67 = 117,692,094.47/x - Step 3: Cross multiply
216,811,278.43x = 299,199,946.67 × 117,692,094.47 - Step 4: Simplify right side
216,811,278.43x = 35,213,468,387,261,488 - Step 5: Solve for x
x = 35,213,468,387,261,488/216,811,278.43 - Step 6: Final answer
x = 162,415,297.96
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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.