Finding the Fourth Proportional to 42,694,378.58, 58,917,528.74 and 23,115,107.99
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Solution
The fourth proportional to 42,694,378.58, 58,917,528.74 and 23,115,107.99 is: 31,898,462.62
Step by Step Solution
- Step 1: Write the proportion equation
42,694,378.58 : 58,917,528.74 = 23,115,107.99 : x - Step 2: Convert to fraction form
42,694,378.58/58,917,528.74 = 23,115,107.99/x - Step 3: Cross multiply
42,694,378.58x = 58,917,528.74 × 23,115,107.99 - Step 4: Simplify right side
42,694,378.58x = 1,361,885,038,918,865.50 - Step 5: Solve for x
x = 1,361,885,038,918,865.50/42,694,378.58 - Step 6: Final answer
x = 31,898,462.62
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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.