Finding the Fourth Proportional to 646,282,085.07, 969,559,319.40 and 209,548,713.99
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Solution
The fourth proportional to 646,282,085.07, 969,559,319.40 and 209,548,713.99 is: 314,367,229.44
Step by Step Solution
- Step 1: Write the proportion equation
646,282,085.07 : 969,559,319.40 = 209,548,713.99 : x - Step 2: Convert to fraction form
646,282,085.07/969,559,319.40 = 209,548,713.99/x - Step 3: Cross multiply
646,282,085.07x = 969,559,319.40 × 209,548,713.99 - Step 4: Simplify right side
646,282,085.07x = 203,169,908,517,289,664 - Step 5: Solve for x
x = 203,169,908,517,289,664/646,282,085.07 - Step 6: Final answer
x = 314,367,229.44
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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.