Finding the Fourth Proportional to 420,813,183.97, 580,625,841.54 and 251,234,417.75
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Solution
The fourth proportional to 420,813,183.97, 580,625,841.54 and 251,234,417.75 is: 346,645,972.11
Step by Step Solution
- Step 1: Write the proportion equation
420,813,183.97 : 580,625,841.54 = 251,234,417.75 : x - Step 2: Convert to fraction form
420,813,183.97/580,625,841.54 = 251,234,417.75/x - Step 3: Cross multiply
420,813,183.97x = 580,625,841.54 × 251,234,417.75 - Step 4: Simplify right side
420,813,183.97x = 145,873,195,232,134,144 - Step 5: Solve for x
x = 145,873,195,232,134,144/420,813,183.97 - Step 6: Final answer
x = 346,645,972.11
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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.