Finding the Fourth Proportional to 138,185,710.20, 207,278,565.30 and 65,544,368.54
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Solution
The fourth proportional to 138,185,710.20, 207,278,565.30 and 65,544,368.54 is: 98,316,552.80
Step by Step Solution
- Step 1: Write the proportion equation
138,185,710.20 : 207,278,565.30 = 65,544,368.54 : x - Step 2: Convert to fraction form
138,185,710.20/207,278,565.30 = 65,544,368.54/x - Step 3: Cross multiply
138,185,710.20x = 207,278,565.30 × 65,544,368.54 - Step 4: Simplify right side
138,185,710.20x = 13,585,942,673,429,262 - Step 5: Solve for x
x = 13,585,942,673,429,262/138,185,710.20 - Step 6: Final answer
x = 98,316,552.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.