Finding the Fourth Proportional to 125,239,913.64, 172,825,225.37 and 69,484,740.68
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Solution
The fourth proportional to 125,239,913.64, 172,825,225.37 and 69,484,740.68 is: 95,885,693.45
Step by Step Solution
- Step 1: Write the proportion equation
125,239,913.64 : 172,825,225.37 = 69,484,740.68 : x - Step 2: Convert to fraction form
125,239,913.64/172,825,225.37 = 69,484,740.68/x - Step 3: Cross multiply
125,239,913.64x = 172,825,225.37 × 69,484,740.68 - Step 4: Simplify right side
125,239,913.64x = 12,008,715,966,585,458 - Step 5: Solve for x
x = 12,008,715,966,585,458/125,239,913.64 - Step 6: Final answer
x = 95,885,693.45
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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.