Finding the Fourth Proportional to 476,990,688.69, 715,486,282.56 and 149,491,708.59
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Solution
The fourth proportional to 476,990,688.69, 715,486,282.56 and 149,491,708.59 is: 224,237,641.09
Step by Step Solution
- Step 1: Write the proportion equation
476,990,688.69 : 715,486,282.56 = 149,491,708.59 : x - Step 2: Convert to fraction form
476,990,688.69/715,486,282.56 = 149,491,708.59/x - Step 3: Cross multiply
476,990,688.69x = 715,486,282.56 × 149,491,708.59 - Step 4: Simplify right side
476,990,688.69x = 106,959,266,852,601,920 - Step 5: Solve for x
x = 106,959,266,852,601,920/476,990,688.69 - Step 6: Final answer
x = 224,237,641.09
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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.