Finding the Fourth Proportional to 10,015,655.31, 15,018,430.98 and 7,135,376.31
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Solution
The fourth proportional to 10,015,655.31, 15,018,430.98 and 7,135,376.31 is: 10,699,465.32
Step by Step Solution
- Step 1: Write the proportion equation
10,015,655.31 : 15,018,430.98 = 7,135,376.31 : x - Step 2: Convert to fraction form
10,015,655.31/15,018,430.98 = 7,135,376.31/x - Step 3: Cross multiply
10,015,655.31x = 15,018,430.98 × 7,135,376.31 - Step 4: Simplify right side
10,015,655.31x = 107,162,156,628,062.08 - Step 5: Solve for x
x = 107,162,156,628,062.08/10,015,655.31 - Step 6: Final answer
x = 10,699,465.32
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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.