Finding the Fourth Proportional to 129,303,498.70, 181,478,394.50 and 129,303,498.70
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Solution
The fourth proportional to 129,303,498.70, 181,478,394.50 and 129,303,498.70 is: 181,478,394.50
Step by Step Solution
- Step 1: Write the proportion equation
129,303,498.70 : 181,478,394.50 = 129,303,498.70 : x - Step 2: Convert to fraction form
129,303,498.70/181,478,394.50 = 129,303,498.70/x - Step 3: Cross multiply
129,303,498.70x = 181,478,394.50 × 129,303,498.70 - Step 4: Simplify right side
129,303,498.70x = 23,465,791,347,308,836 - Step 5: Solve for x
x = 23,465,791,347,308,836/129,303,498.70 - Step 6: Final answer
x = 181,478,394.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.