Finding the Fourth Proportional to 720,798,336.69, 994,740,326.34 and 403,239,639.06
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Solution
The fourth proportional to 720,798,336.69, 994,740,326.34 and 403,239,639.06 is: 556,492,308.23
Step by Step Solution
- Step 1: Write the proportion equation
720,798,336.69 : 994,740,326.34 = 403,239,639.06 : x - Step 2: Convert to fraction form
720,798,336.69/994,740,326.34 = 403,239,639.06/x - Step 3: Cross multiply
720,798,336.69x = 994,740,326.34 × 403,239,639.06 - Step 4: Simplify right side
720,798,336.69x = 401,118,730,151,768,256 - Step 5: Solve for x
x = 401,118,730,151,768,256/720,798,336.69 - Step 6: Final answer
x = 556,492,308.23
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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.