Finding the Fourth Proportional to 339,183,643.70, 508,775,465.55 and 121,080,257.30
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Solution
The fourth proportional to 339,183,643.70, 508,775,465.55 and 121,080,257.30 is: 181,620,385.95
Step by Step Solution
- Step 1: Write the proportion equation
339,183,643.70 : 508,775,465.55 = 121,080,257.30 : x - Step 2: Convert to fraction form
339,183,643.70/508,775,465.55 = 121,080,257.30/x - Step 3: Cross multiply
339,183,643.70x = 508,775,465.55 × 121,080,257.30 - Step 4: Simplify right side
339,183,643.70x = 61,602,664,276,721,288 - Step 5: Solve for x
x = 61,602,664,276,721,288/339,183,643.70 - Step 6: Final answer
x = 181,620,385.95
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.