Finding the Fourth Proportional to 302,768,673.21, 417,820,929.18 and 163,539,434.73
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Solution
The fourth proportional to 302,768,673.21, 417,820,929.18 and 163,539,434.73 is: 225,684,506.43
Step by Step Solution
- Step 1: Write the proportion equation
302,768,673.21 : 417,820,929.18 = 163,539,434.73 : x - Step 2: Convert to fraction form
302,768,673.21/417,820,929.18 = 163,539,434.73/x - Step 3: Cross multiply
302,768,673.21x = 417,820,929.18 × 163,539,434.73 - Step 4: Simplify right side
302,768,673.21x = 68,330,198,576,460,560 - Step 5: Solve for x
x = 68,330,198,576,460,560/302,768,673.21 - Step 6: Final answer
x = 225,684,506.43
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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.