Finding the Fourth Proportional to 306,563,619.60, 422,994,641.40 and 176,158,233.36
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Solution
The fourth proportional to 306,563,619.60, 422,994,641.40 and 176,158,233.36 is: 243,062,072.55
Step by Step Solution
- Step 1: Write the proportion equation
306,563,619.60 : 422,994,641.40 = 176,158,233.36 : x - Step 2: Convert to fraction form
306,563,619.60/422,994,641.40 = 176,158,233.36/x - Step 3: Cross multiply
306,563,619.60x = 422,994,641.40 × 176,158,233.36 - Step 4: Simplify right side
306,563,619.60x = 74,513,988,749,770,720 - Step 5: Solve for x
x = 74,513,988,749,770,720/306,563,619.60 - Step 6: Final answer
x = 243,062,072.55
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.