Finding the Fourth Proportional to 90,988,405.72, 125,563,990.62 and 49,735,462.84
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Solution
The fourth proportional to 90,988,405.72, 125,563,990.62 and 49,735,462.84 is: 68,634,933.65
Step by Step Solution
- Step 1: Write the proportion equation
90,988,405.72 : 125,563,990.62 = 49,735,462.84 : x - Step 2: Convert to fraction form
90,988,405.72/125,563,990.62 = 49,735,462.84/x - Step 3: Cross multiply
90,988,405.72x = 125,563,990.62 × 49,735,462.84 - Step 4: Simplify right side
90,988,405.72x = 6,244,983,189,523,119 - Step 5: Solve for x
x = 6,244,983,189,523,119/90,988,405.72 - Step 6: Final answer
x = 68,634,933.65
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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.