Finding the Fourth Proportional to 74,861,929.20, 112,292,893.80 and 18,128,233.20
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Solution
The fourth proportional to 74,861,929.20, 112,292,893.80 and 18,128,233.20 is: 27,192,349.80
Step by Step Solution
- Step 1: Write the proportion equation
74,861,929.20 : 112,292,893.80 = 18,128,233.20 : x - Step 2: Convert to fraction form
74,861,929.20/112,292,893.80 = 18,128,233.20/x - Step 3: Cross multiply
74,861,929.20x = 112,292,893.80 × 18,128,233.20 - Step 4: Simplify right side
74,861,929.20x = 2,035,671,765,509,234 - Step 5: Solve for x
x = 2,035,671,765,509,234/74,861,929.20 - Step 6: Final answer
x = 27,192,349.80
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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.