Finding the Fourth Proportional to 881,899,950.15, 1,217,012,273.37 and 485,414,462.79
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Solution
The fourth proportional to 881,899,950.15, 1,217,012,273.37 and 485,414,462.79 is: 669,866,642.79
Step by Step Solution
- Step 1: Write the proportion equation
881,899,950.15 : 1,217,012,273.37 = 485,414,462.79 : x - Step 2: Convert to fraction form
881,899,950.15/1,217,012,273.37 = 485,414,462.79/x - Step 3: Cross multiply
881,899,950.15x = 1,217,012,273.37 × 485,414,462.79 - Step 4: Simplify right side
881,899,950.15x = 590,755,358,886,735,104 - Step 5: Solve for x
x = 590,755,358,886,735,104/881,899,950.15 - Step 6: Final answer
x = 669,866,642.79
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1.5x scale
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.