Finding the Fourth Proportional to 128,497,047.30, 177,329,009.43 and 69,762,187.98
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Solution
The fourth proportional to 128,497,047.30, 177,329,009.43 and 69,762,187.98 is: 96,273,493.83
Step by Step Solution
- Step 1: Write the proportion equation
128,497,047.30 : 177,329,009.43 = 69,762,187.98 : x - Step 2: Convert to fraction form
128,497,047.30/177,329,009.43 = 69,762,187.98/x - Step 3: Cross multiply
128,497,047.30x = 177,329,009.43 × 69,762,187.98 - Step 4: Simplify right side
128,497,047.30x = 12,370,859,690,162,854 - Step 5: Solve for x
x = 12,370,859,690,162,854/128,497,047.30 - Step 6: Final answer
x = 96,273,493.83
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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.