Finding the Fourth Proportional to 722,390,421.97, 996,881,826.85 and 425,051,922.70
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Solution
The fourth proportional to 722,390,421.97, 996,881,826.85 and 425,051,922.70 is: 586,561,676.79
Step by Step Solution
- Step 1: Write the proportion equation
722,390,421.97 : 996,881,826.85 = 425,051,922.70 : x - Step 2: Convert to fraction form
722,390,421.97/996,881,826.85 = 425,051,922.70/x - Step 3: Cross multiply
722,390,421.97x = 996,881,826.85 × 425,051,922.70 - Step 4: Simplify right side
722,390,421.97x = 423,726,537,207,454,464 - Step 5: Solve for x
x = 423,726,537,207,454,464/722,390,421.97 - Step 6: Final answer
x = 586,561,676.79
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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.