Finding the Fourth Proportional to 4,668,563.07, 6,447,931.44 and 3,138,012.99
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Solution
The fourth proportional to 4,668,563.07, 6,447,931.44 and 3,138,012.99 is: 4,334,030.05
Step by Step Solution
- Step 1: Write the proportion equation
4,668,563.07 : 6,447,931.44 = 3,138,012.99 : x - Step 2: Convert to fraction form
4,668,563.07/6,447,931.44 = 3,138,012.99/x - Step 3: Cross multiply
4,668,563.07x = 6,447,931.44 × 3,138,012.99 - Step 4: Simplify right side
4,668,563.07x = 20,233,692,617,349.41 - Step 5: Solve for x
x = 20,233,692,617,349.41/4,668,563.07 - Step 6: Final answer
x = 4,334,030.05
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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.