Finding the Fourth Proportional to 115,613,388.25, 159,531,811.95 and 63,388,681.18
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Solution
The fourth proportional to 115,613,388.25, 159,531,811.95 and 63,388,681.18 is: 87,468,340.12
Step by Step Solution
- Step 1: Write the proportion equation
115,613,388.25 : 159,531,811.95 = 63,388,681.18 : x - Step 2: Convert to fraction form
115,613,388.25/159,531,811.95 = 63,388,681.18/x - Step 3: Cross multiply
115,613,388.25x = 159,531,811.95 × 63,388,681.18 - Step 4: Simplify right side
115,613,388.25x = 10,112,511,165,766,264 - Step 5: Solve for x
x = 10,112,511,165,766,264/115,613,388.25 - Step 6: Final answer
x = 87,468,340.12
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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.