Finding the Fourth Proportional to 86,361,420.94, 119,178,471.45 and 47,203,175.02
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Solution
The fourth proportional to 86,361,420.94, 119,178,471.45 and 47,203,175.02 is: 65,140,223.32
Step by Step Solution
- Step 1: Write the proportion equation
86,361,420.94 : 119,178,471.45 = 47,203,175.02 : x - Step 2: Convert to fraction form
86,361,420.94/119,178,471.45 = 47,203,175.02/x - Step 3: Cross multiply
86,361,420.94x = 119,178,471.45 × 47,203,175.02 - Step 4: Simplify right side
86,361,420.94x = 5,625,602,246,470,424 - Step 5: Solve for x
x = 5,625,602,246,470,424/86,361,420.94 - Step 6: Final answer
x = 65,140,223.32
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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.