Finding the Fourth Proportional to 3,117,835,405.66, 4,302,576,435.21 and 1,688,879,567.62
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Solution
The fourth proportional to 3,117,835,405.66, 4,302,576,435.21 and 1,688,879,567.62 is: 2,330,634,072.72
Step by Step Solution
- Step 1: Write the proportion equation
3,117,835,405.66 : 4,302,576,435.21 = 1,688,879,567.62 : x - Step 2: Convert to fraction form
3,117,835,405.66/4,302,576,435.21 = 1,688,879,567.62/x - Step 3: Cross multiply
3,117,835,405.66x = 4,302,576,435.21 × 1,688,879,567.62 - Step 4: Simplify right side
3,117,835,405.66x = 7,266,533,429,549,465,600 - Step 5: Solve for x
x = 7,266,533,429,549,465,600/3,117,835,405.66 - Step 6: Final answer
x = 2,330,634,072.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.