Finding the Fourth Proportional to 521,352,415.08, 719,466,804.36 and 286,418,294.64
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Solution
The fourth proportional to 521,352,415.08, 719,466,804.36 and 286,418,294.64 is: 395,257,505.66
Step by Step Solution
- Step 1: Write the proportion equation
521,352,415.08 : 719,466,804.36 = 286,418,294.64 : x - Step 2: Convert to fraction form
521,352,415.08/719,466,804.36 = 286,418,294.64/x - Step 3: Cross multiply
521,352,415.08x = 719,466,804.36 × 286,418,294.64 - Step 4: Simplify right side
521,352,415.08x = 206,068,455,154,881,696 - Step 5: Solve for x
x = 206,068,455,154,881,696/521,352,415.08 - Step 6: Final answer
x = 395,257,505.66
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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.