Finding the Fourth Proportional to 75,212,214.28, 103,814,379.06 and 44,290,319.70
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Solution
The fourth proportional to 75,212,214.28, 103,814,379.06 and 44,290,319.70 is: 61,133,315.67
Step by Step Solution
- Step 1: Write the proportion equation
75,212,214.28 : 103,814,379.06 = 44,290,319.70 : x - Step 2: Convert to fraction form
75,212,214.28/103,814,379.06 = 44,290,319.70/x - Step 3: Cross multiply
75,212,214.28x = 103,814,379.06 × 44,290,319.70 - Step 4: Simplify right side
75,212,214.28x = 4,597,972,038,024,386 - Step 5: Solve for x
x = 4,597,972,038,024,386/75,212,214.28 - Step 6: Final answer
x = 61,133,315.67
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.