Finding the Fourth Proportional to 102,831,190.45, 141,909,654.12 and 56,421,432.07
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Solution
The fourth proportional to 102,831,190.45, 141,909,654.12 and 56,421,432.07 is: 77,863,009.02
Step by Step Solution
- Step 1: Write the proportion equation
102,831,190.45 : 141,909,654.12 = 56,421,432.07 : x - Step 2: Convert to fraction form
102,831,190.45/141,909,654.12 = 56,421,432.07/x - Step 3: Cross multiply
102,831,190.45x = 141,909,654.12 × 56,421,432.07 - Step 4: Simplify right side
102,831,190.45x = 8,006,745,910,008,776 - Step 5: Solve for x
x = 8,006,745,910,008,776/102,831,190.45 - Step 6: Final answer
x = 77,863,009.02
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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.