Finding the Fourth Proportional to 1,418,331,545.63, 1,957,277,101.68 and 783,278,908.38
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Solution
The fourth proportional to 1,418,331,545.63, 1,957,277,101.68 and 783,278,908.38 is: 1,080,913,610.31
Step by Step Solution
- Step 1: Write the proportion equation
1,418,331,545.63 : 1,957,277,101.68 = 783,278,908.38 : x - Step 2: Convert to fraction form
1,418,331,545.63/1,957,277,101.68 = 783,278,908.38/x - Step 3: Cross multiply
1,418,331,545.63x = 1,957,277,101.68 × 783,278,908.38 - Step 4: Simplify right side
1,418,331,545.63x = 1,533,093,871,601,080,832 - Step 5: Solve for x
x = 1,533,093,871,601,080,832/1,418,331,545.63 - Step 6: Final answer
x = 1,080,913,610.31
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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.