Finding the Fourth Proportional to 819,151,615.53, 1,228,750,316.86 and 266,454,045.80
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Solution
The fourth proportional to 819,151,615.53, 1,228,750,316.86 and 266,454,045.80 is: 399,688,515.53
Step by Step Solution
- Step 1: Write the proportion equation
819,151,615.53 : 1,228,750,316.86 = 266,454,045.80 : x - Step 2: Convert to fraction form
819,151,615.53/1,228,750,316.86 = 266,454,045.80/x - Step 3: Cross multiply
819,151,615.53x = 1,228,750,316.86 × 266,454,045.80 - Step 4: Simplify right side
819,151,615.53x = 327,405,493,205,378,944 - Step 5: Solve for x
x = 327,405,493,205,378,944/819,151,615.53 - Step 6: Final answer
x = 399,688,515.53
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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.