Finding the Fourth Proportional to 145,669,332.96, 201,021,298.56 and 79,588,405.44
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Solution
The fourth proportional to 145,669,332.96, 201,021,298.56 and 79,588,405.44 is: 109,830,698.66
Step by Step Solution
- Step 1: Write the proportion equation
145,669,332.96 : 201,021,298.56 = 79,588,405.44 : x - Step 2: Convert to fraction form
145,669,332.96/201,021,298.56 = 79,588,405.44/x - Step 3: Cross multiply
145,669,332.96x = 201,021,298.56 × 79,588,405.44 - Step 4: Simplify right side
145,669,332.96x = 15,998,964,611,868,568 - Step 5: Solve for x
x = 15,998,964,611,868,568/145,669,332.96 - Step 6: Final answer
x = 109,830,698.66
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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.