Finding the Fourth Proportional to 38,678,415.12, 58,011,313.20 and 11,378,325.48
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Solution
The fourth proportional to 38,678,415.12, 58,011,313.20 and 11,378,325.48 is: 17,065,632.11
Step by Step Solution
- Step 1: Write the proportion equation
38,678,415.12 : 58,011,313.20 = 11,378,325.48 : x - Step 2: Convert to fraction form
38,678,415.12/58,011,313.20 = 11,378,325.48/x - Step 3: Cross multiply
38,678,415.12x = 58,011,313.20 × 11,378,325.48 - Step 4: Simplify right side
38,678,415.12x = 660,071,603,111,820.38 - Step 5: Solve for x
x = 660,071,603,111,820.38/38,678,415.12 - Step 6: Final answer
x = 17,065,632.11
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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.