Finding the Fourth Proportional to 302,768,658.63, 417,820,908.99 and 163,539,420.11
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Solution
The fourth proportional to 302,768,658.63, 417,820,908.99 and 163,539,420.11 is: 225,684,486.22
Step by Step Solution
- Step 1: Write the proportion equation
302,768,658.63 : 417,820,908.99 = 163,539,420.11 : x - Step 2: Convert to fraction form
302,768,658.63/417,820,908.99 = 163,539,420.11/x - Step 3: Cross multiply
302,768,658.63x = 417,820,908.99 × 163,539,420.11 - Step 4: Simplify right side
302,768,658.63x = 68,330,189,164,377,424 - Step 5: Solve for x
x = 68,330,189,164,377,424/302,768,658.63 - Step 6: Final answer
x = 225,684,486.22
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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.