Finding the Fourth Proportional to 128,465,374.20, 192,634,298.10 and 46,580,983.80
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Solution
The fourth proportional to 128,465,374.20, 192,634,298.10 and 46,580,983.80 is: 69,848,355.44
Step by Step Solution
- Step 1: Write the proportion equation
128,465,374.20 : 192,634,298.10 = 46,580,983.80 : x - Step 2: Convert to fraction form
128,465,374.20/192,634,298.10 = 46,580,983.80/x - Step 3: Cross multiply
128,465,374.20x = 192,634,298.10 × 46,580,983.80 - Step 4: Simplify right side
128,465,374.20x = 8,973,095,119,120,470 - Step 5: Solve for x
x = 8,973,095,119,120,470/128,465,374.20 - Step 6: Final answer
x = 69,848,355.44
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.