Finding the Fourth Proportional to 81,624,763.36, 112,650,129.84 and 60,962,337.28
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Solution
The fourth proportional to 81,624,763.36, 112,650,129.84 and 60,962,337.28 is: 84,133,967.77
Step by Step Solution
- Step 1: Write the proportion equation
81,624,763.36 : 112,650,129.84 = 60,962,337.28 : x - Step 2: Convert to fraction form
81,624,763.36/112,650,129.84 = 60,962,337.28/x - Step 3: Cross multiply
81,624,763.36x = 112,650,129.84 × 60,962,337.28 - Step 4: Simplify right side
81,624,763.36x = 6,867,415,209,941,873 - Step 5: Solve for x
x = 6,867,415,209,941,873/81,624,763.36 - Step 6: Final answer
x = 84,133,967.77
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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.