Finding the Fourth Proportional to 225,307,366.90, 310,825,122.91 and 135,949,468.99
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Solution
The fourth proportional to 225,307,366.90, 310,825,122.91 and 135,949,468.99 is: 187,550,504.85
Step by Step Solution
- Step 1: Write the proportion equation
225,307,366.90 : 310,825,122.91 = 135,949,468.99 : x - Step 2: Convert to fraction form
225,307,366.90/310,825,122.91 = 135,949,468.99/x - Step 3: Cross multiply
225,307,366.90x = 310,825,122.91 × 135,949,468.99 - Step 4: Simplify right side
225,307,366.90x = 42,256,510,409,312,984 - Step 5: Solve for x
x = 42,256,510,409,312,984/225,307,366.90 - Step 6: Final answer
x = 187,550,504.85
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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.