Finding the Fourth Proportional to 351,021,653.80, 526,532,480.70 and 169,623,125.80
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Solution
The fourth proportional to 351,021,653.80, 526,532,480.70 and 169,623,125.80 is: 254,434,688.70
Step by Step Solution
- Step 1: Write the proportion equation
351,021,653.80 : 526,532,480.70 = 169,623,125.80 : x - Step 2: Convert to fraction form
351,021,653.80/526,532,480.70 = 169,623,125.80/x - Step 3: Cross multiply
351,021,653.80x = 526,532,480.70 × 169,623,125.80 - Step 4: Simplify right side
351,021,653.80x = 89,312,085,211,562,176 - Step 5: Solve for x
x = 89,312,085,211,562,176/351,021,653.80 - Step 6: Final answer
x = 254,434,688.70
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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.