Finding the Fourth Proportional to 85,414,863.42, 128,326,691.64 and 54,769,484.00
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Solution
The fourth proportional to 85,414,863.42, 128,326,691.64 and 54,769,484.00 is: 82,285,288.56
Step by Step Solution
- Step 1: Write the proportion equation
85,414,863.42 : 128,326,691.64 = 54,769,484.00 : x - Step 2: Convert to fraction form
85,414,863.42/128,326,691.64 = 54,769,484.00/x - Step 3: Cross multiply
85,414,863.42x = 128,326,691.64 × 54,769,484.00 - Step 4: Simplify right side
85,414,863.42x = 7,028,386,683,908,280 - Step 5: Solve for x
x = 7,028,386,683,908,280/85,414,863.42 - Step 6: Final answer
x = 82,285,288.56
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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.