Finding the Fourth Proportional to 481,142,131.08, 663,976,417.14 and 261,125,557.08
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Solution
The fourth proportional to 481,142,131.08, 663,976,417.14 and 261,125,557.08 is: 360,353,418.70
Step by Step Solution
- Step 1: Write the proportion equation
481,142,131.08 : 663,976,417.14 = 261,125,557.08 : x - Step 2: Convert to fraction form
481,142,131.08/663,976,417.14 = 261,125,557.08/x - Step 3: Cross multiply
481,142,131.08x = 663,976,417.14 × 261,125,557.08 - Step 4: Simplify right side
481,142,131.08x = 173,381,211,813,664,960 - Step 5: Solve for x
x = 173,381,211,813,664,960/481,142,131.08 - Step 6: Final answer
x = 360,353,418.70
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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.