Finding the Fourth Proportional to 395,346,398.04, 545,577,087.60 and 216,729,969.12
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Solution
The fourth proportional to 395,346,398.04, 545,577,087.60 and 216,729,969.12 is: 299,086,841.15
Step by Step Solution
- Step 1: Write the proportion equation
395,346,398.04 : 545,577,087.60 = 216,729,969.12 : x - Step 2: Convert to fraction form
395,346,398.04/545,577,087.60 = 216,729,969.12/x - Step 3: Cross multiply
395,346,398.04x = 545,577,087.60 × 216,729,969.12 - Step 4: Simplify right side
395,346,398.04x = 118,242,905,348,127,536 - Step 5: Solve for x
x = 118,242,905,348,127,536/395,346,398.04 - Step 6: Final answer
x = 299,086,841.15
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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.