Finding the Fourth Proportional to 55,272,491.68, 76,236,544.48 and 47,917,173.28
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Solution
The fourth proportional to 55,272,491.68, 76,236,544.48 and 47,917,173.28 is: 66,091,460.71
Step by Step Solution
- Step 1: Write the proportion equation
55,272,491.68 : 76,236,544.48 = 47,917,173.28 : x - Step 2: Convert to fraction form
55,272,491.68/76,236,544.48 = 47,917,173.28/x - Step 3: Cross multiply
55,272,491.68x = 76,236,544.48 × 47,917,173.28 - Step 4: Simplify right side
55,272,491.68x = 3,653,039,712,116,588 - Step 5: Solve for x
x = 3,653,039,712,116,588/55,272,491.68 - Step 6: Final answer
x = 66,091,460.71
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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.