Finding the Fourth Proportional to 85,602,787.88, 128,328,598.28 and 65,497,784.36
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Solution
The fourth proportional to 85,602,787.88, 128,328,598.28 and 65,497,784.36 is: 98,188,844.84
Step by Step Solution
- Step 1: Write the proportion equation
85,602,787.88 : 128,328,598.28 = 65,497,784.36 : x - Step 2: Convert to fraction form
85,602,787.88/128,328,598.28 = 65,497,784.36/x - Step 3: Cross multiply
85,602,787.88x = 128,328,598.28 × 65,497,784.36 - Step 4: Simplify right side
85,602,787.88x = 8,405,238,856,886,608 - Step 5: Solve for x
x = 8,405,238,856,886,608/85,602,787.88 - Step 6: Final answer
x = 98,188,844.84
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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.