Finding the Fourth Proportional to 586,787,862.20, 879,174,023.70 and 310,029,135.80
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Solution
The fourth proportional to 586,787,862.20, 879,174,023.70 and 310,029,135.80 is: 464,511,249.03
Step by Step Solution
- Step 1: Write the proportion equation
586,787,862.20 : 879,174,023.70 = 310,029,135.80 : x - Step 2: Convert to fraction form
586,787,862.20/879,174,023.70 = 310,029,135.80/x - Step 3: Cross multiply
586,787,862.20x = 879,174,023.70 × 310,029,135.80 - Step 4: Simplify right side
586,787,862.20x = 272,569,562,785,519,744 - Step 5: Solve for x
x = 272,569,562,785,519,744/586,787,862.20 - Step 6: Final answer
x = 464,511,249.03
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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.