Finding the Fourth Proportional to 134,868,128.23, 186,118,014.70 and 72,988,466.79
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Solution
The fourth proportional to 134,868,128.23, 186,118,014.70 and 72,988,466.79 is: 100,724,082.95
Step by Step Solution
- Step 1: Write the proportion equation
134,868,128.23 : 186,118,014.70 = 72,988,466.79 : x - Step 2: Convert to fraction form
134,868,128.23/186,118,014.70 = 72,988,466.79/x - Step 3: Cross multiply
134,868,128.23x = 186,118,014.70 × 72,988,466.79 - Step 4: Simplify right side
134,868,128.23x = 13,584,468,534,951,682 - Step 5: Solve for x
x = 13,584,468,534,951,682/134,868,128.23 - Step 6: Final answer
x = 100,724,082.95
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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.