Finding the Fourth Proportional to 420,820,468.53, 580,750,181.43 and 235,181,478.75
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Solution
The fourth proportional to 420,820,468.53, 580,750,181.43 and 235,181,478.75 is: 324,560,463.82
Step by Step Solution
- Step 1: Write the proportion equation
420,820,468.53 : 580,750,181.43 = 235,181,478.75 : x - Step 2: Convert to fraction form
420,820,468.53/580,750,181.43 = 235,181,478.75/x - Step 3: Cross multiply
420,820,468.53x = 580,750,181.43 × 235,181,478.75 - Step 4: Simplify right side
420,820,468.53x = 136,581,686,453,038,176 - Step 5: Solve for x
x = 136,581,686,453,038,176/420,820,468.53 - Step 6: Final answer
x = 324,560,463.82
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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.