Finding the Fourth Proportional to 144,292,386.94, 199,118,159.37 and 78,211,466.42
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Solution
The fourth proportional to 144,292,386.94, 199,118,159.37 and 78,211,466.42 is: 107,928,932.12
Step by Step Solution
- Step 1: Write the proportion equation
144,292,386.94 : 199,118,159.37 = 78,211,466.42 : x - Step 2: Convert to fraction form
144,292,386.94/199,118,159.37 = 78,211,466.42/x - Step 3: Cross multiply
144,292,386.94x = 199,118,159.37 × 78,211,466.42 - Step 4: Simplify right side
144,292,386.94x = 15,573,323,235,178,964 - Step 5: Solve for x
x = 15,573,323,235,178,964/144,292,386.94 - Step 6: Final answer
x = 107,928,932.12
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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.