Finding the Fourth Proportional to 438,492,268.68, 605,070,509.88 and 242,872,991.88
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Solution
The fourth proportional to 438,492,268.68, 605,070,509.88 and 242,872,991.88 is: 335,137,687.78
Step by Step Solution
- Step 1: Write the proportion equation
438,492,268.68 : 605,070,509.88 = 242,872,991.88 : x - Step 2: Convert to fraction form
438,492,268.68/605,070,509.88 = 242,872,991.88/x - Step 3: Cross multiply
438,492,268.68x = 605,070,509.88 × 242,872,991.88 - Step 4: Simplify right side
438,492,268.68x = 146,955,285,032,912,704 - Step 5: Solve for x
x = 146,955,285,032,912,704/438,492,268.68 - Step 6: Final answer
x = 335,137,687.78
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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.