Finding the Fourth Proportional to 91,071,252.90, 125,679,326.14 and 49,818,145.68
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Solution
The fourth proportional to 91,071,252.90, 125,679,326.14 and 49,818,145.68 is: 68,749,586.49
Step by Step Solution
- Step 1: Write the proportion equation
91,071,252.90 : 125,679,326.14 = 49,818,145.68 : x - Step 2: Convert to fraction form
91,071,252.90/125,679,326.14 = 49,818,145.68/x - Step 3: Cross multiply
91,071,252.90x = 125,679,326.14 × 49,818,145.68 - Step 4: Simplify right side
91,071,252.90x = 6,261,110,977,978,355 - Step 5: Solve for x
x = 6,261,110,977,978,355/91,071,252.90 - Step 6: Final answer
x = 68,749,586.49
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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.