Finding the Fourth Proportional to 85,414,854.04, 128,326,677.57 and 54,769,474.62
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Solution
The fourth proportional to 85,414,854.04, 128,326,677.57 and 54,769,474.62 is: 82,285,274.49
Step by Step Solution
- Step 1: Write the proportion equation
85,414,854.04 : 128,326,677.57 = 54,769,474.62 : x - Step 2: Convert to fraction form
85,414,854.04/128,326,677.57 = 54,769,474.62/x - Step 3: Cross multiply
85,414,854.04x = 128,326,677.57 × 54,769,474.62 - Step 4: Simplify right side
85,414,854.04x = 7,028,384,710,239,038 - Step 5: Solve for x
x = 7,028,384,710,239,038/85,414,854.04 - Step 6: Final answer
x = 82,285,274.49
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1.5x scale
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.