Finding the Fourth Proportional to 56,931,128, 85,405,539.36 and 19,117,511.36
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Solution
The fourth proportional to 56,931,128, 85,405,539.36 and 19,117,511.36 is: 28,679,237.99
Step by Step Solution
- Step 1: Write the proportion equation
56,931,128 : 85,405,539.36 = 19,117,511.36 : x - Step 2: Convert to fraction form
56,931,128/85,405,539.36 = 19,117,511.36/x - Step 3: Cross multiply
56,931,128x = 85,405,539.36 × 19,117,511.36 - Step 4: Simplify right side
56,931,128x = 1,632,741,368,921,727 - Step 5: Solve for x
x = 1,632,741,368,921,727/56,931,128 - Step 6: Final answer
x = 28,679,237.99
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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.