Finding the Fourth Proportional to 345,417,902.49, 518,359,985.01 and 135,302,526.08
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Solution
The fourth proportional to 345,417,902.49, 518,359,985.01 and 135,302,526.08 is: 203,045,108.21
Step by Step Solution
- Step 1: Write the proportion equation
345,417,902.49 : 518,359,985.01 = 135,302,526.08 : x - Step 2: Convert to fraction form
345,417,902.49/518,359,985.01 = 135,302,526.08/x - Step 3: Cross multiply
345,417,902.49x = 518,359,985.01 × 135,302,526.08 - Step 4: Simplify right side
345,417,902.49x = 70,135,415,388,052,128 - Step 5: Solve for x
x = 70,135,415,388,052,128/345,417,902.49 - Step 6: Final answer
x = 203,045,108.21
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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.