Finding the Fourth Proportional to 103,610,817.68, 142,982,188.12 and 56,567,889.68
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Solution
The fourth proportional to 103,610,817.68, 142,982,188.12 and 56,567,889.68 is: 78,063,283.59
Step by Step Solution
- Step 1: Write the proportion equation
103,610,817.68 : 142,982,188.12 = 56,567,889.68 : x - Step 2: Convert to fraction form
103,610,817.68/142,982,188.12 = 56,567,889.68/x - Step 3: Cross multiply
103,610,817.68x = 142,982,188.12 × 56,567,889.68 - Step 4: Simplify right side
103,610,817.68x = 8,088,200,643,777,167 - Step 5: Solve for x
x = 8,088,200,643,777,167/103,610,817.68 - Step 6: Final answer
x = 78,063,283.59
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.