Finding the Fourth Proportional to 476,990,688.19, 715,486,281.81 and 149,491,708.09
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Solution
The fourth proportional to 476,990,688.19, 715,486,281.81 and 149,491,708.09 is: 224,237,640.34
Step by Step Solution
- Step 1: Write the proportion equation
476,990,688.19 : 715,486,281.81 = 149,491,708.09 : x - Step 2: Convert to fraction form
476,990,688.19/715,486,281.81 = 149,491,708.09/x - Step 3: Cross multiply
476,990,688.19x = 715,486,281.81 × 149,491,708.09 - Step 4: Simplify right side
476,990,688.19x = 106,959,266,382,739,984 - Step 5: Solve for x
x = 106,959,266,382,739,984/476,990,688.19 - Step 6: Final answer
x = 224,237,640.34
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.