Finding the Fourth Proportional to 375,017,678.08, 517,475,317.74 and 216,253,664.98
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Solution
The fourth proportional to 375,017,678.08, 517,475,317.74 and 216,253,664.98 is: 298,401,756.87
Step by Step Solution
- Step 1: Write the proportion equation
375,017,678.08 : 517,475,317.74 = 216,253,664.98 : x - Step 2: Convert to fraction form
375,017,678.08/517,475,317.74 = 216,253,664.98/x - Step 3: Cross multiply
375,017,678.08x = 517,475,317.74 × 216,253,664.98 - Step 4: Simplify right side
375,017,678.08x = 111,905,933,997,965,008 - Step 5: Solve for x
x = 111,905,933,997,965,008/375,017,678.08 - Step 6: Final answer
x = 298,401,756.87
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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.