Finding the Fourth Proportional to 472,392,912.60, 708,589,368.90 and 357,601,656.60
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Solution
The fourth proportional to 472,392,912.60, 708,589,368.90 and 357,601,656.60 is: 536,402,484.90
Step by Step Solution
- Step 1: Write the proportion equation
472,392,912.60 : 708,589,368.90 = 357,601,656.60 : x - Step 2: Convert to fraction form
472,392,912.60/708,589,368.90 = 357,601,656.60/x - Step 3: Cross multiply
472,392,912.60x = 708,589,368.90 × 357,601,656.60 - Step 4: Simplify right side
472,392,912.60x = 253,392,732,167,788,544 - Step 5: Solve for x
x = 253,392,732,167,788,544/472,392,912.60 - Step 6: Final answer
x = 536,402,484.90
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.