Finding the Fourth Proportional to 31,523,690.88, 47,217,107.52 and 19,356,220.80
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Solution
The fourth proportional to 31,523,690.88, 47,217,107.52 and 19,356,220.80 is: 28,992,314.45
Step by Step Solution
- Step 1: Write the proportion equation
31,523,690.88 : 47,217,107.52 = 19,356,220.80 : x - Step 2: Convert to fraction form
31,523,690.88/47,217,107.52 = 19,356,220.80/x - Step 3: Cross multiply
31,523,690.88x = 47,217,107.52 × 19,356,220.80 - Step 4: Simplify right side
31,523,690.88x = 913,944,758,694,460.50 - Step 5: Solve for x
x = 913,944,758,694,460.50/31,523,690.88 - Step 6: Final answer
x = 28,992,314.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.