Finding the Fourth Proportional to 73,821,440.70, 110,698,983.45 and 28,368,128.70
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Solution
The fourth proportional to 73,821,440.70, 110,698,983.45 and 28,368,128.70 is: 42,539,443.55
Step by Step Solution
- Step 1: Write the proportion equation
73,821,440.70 : 110,698,983.45 = 28,368,128.70 : x - Step 2: Convert to fraction form
73,821,440.70/110,698,983.45 = 28,368,128.70/x - Step 3: Cross multiply
73,821,440.70x = 110,698,983.45 × 28,368,128.70 - Step 4: Simplify right side
73,821,440.70x = 3,140,323,009,468,770 - Step 5: Solve for x
x = 3,140,323,009,468,770/73,821,440.70 - Step 6: Final answer
x = 42,539,443.55
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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.