Finding the Fourth Proportional to 163,803,934.02, 225,899,718.68 and 128,045,099.03
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Solution
The fourth proportional to 163,803,934.02, 225,899,718.68 and 128,045,099.03 is: 176,585,208.53
Step by Step Solution
- Step 1: Write the proportion equation
163,803,934.02 : 225,899,718.68 = 128,045,099.03 : x - Step 2: Convert to fraction form
163,803,934.02/225,899,718.68 = 128,045,099.03/x - Step 3: Cross multiply
163,803,934.02x = 225,899,718.68 × 128,045,099.03 - Step 4: Simplify right side
163,803,934.02x = 28,925,351,848,420,356 - Step 5: Solve for x
x = 28,925,351,848,420,356/163,803,934.02 - Step 6: Final answer
x = 176,585,208.53
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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.