Finding the Fourth Proportional to 420,944,638.16, 580,907,359.47 and 232,785,663.96
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Solution
The fourth proportional to 420,944,638.16, 580,907,359.47 and 232,785,663.96 is: 321,246,294.92
Step by Step Solution
- Step 1: Write the proportion equation
420,944,638.16 : 580,907,359.47 = 232,785,663.96 : x - Step 2: Convert to fraction form
420,944,638.16/580,907,359.47 = 232,785,663.96/x - Step 3: Cross multiply
420,944,638.16x = 580,907,359.47 × 232,785,663.96 - Step 4: Simplify right side
420,944,638.16x = 135,226,905,374,235,728 - Step 5: Solve for x
x = 135,226,905,374,235,728/420,944,638.16 - Step 6: Final answer
x = 321,246,294.92
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.