Finding the Fourth Proportional to 20,750,403.70, 31,130,271.15 and 6,374,134.90
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Solution
The fourth proportional to 20,750,403.70, 31,130,271.15 and 6,374,134.90 is: 9,562,635.53
Step by Step Solution
- Step 1: Write the proportion equation
20,750,403.70 : 31,130,271.15 = 6,374,134.90 : x - Step 2: Convert to fraction form
20,750,403.70/31,130,271.15 = 6,374,134.90/x - Step 3: Cross multiply
20,750,403.70x = 31,130,271.15 × 6,374,134.90 - Step 4: Simplify right side
20,750,403.70x = 198,428,547,783,678.12 - Step 5: Solve for x
x = 198,428,547,783,678.12/20,750,403.70 - Step 6: Final answer
x = 9,562,635.53
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.