Finding the Fourth Proportional to 611,720,377.47, 917,867,544.35 and 305,036,405.19
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Solution
The fourth proportional to 611,720,377.47, 917,867,544.35 and 305,036,405.19 is: 457,697,710.39
Step by Step Solution
- Step 1: Write the proportion equation
611,720,377.47 : 917,867,544.35 = 305,036,405.19 : x - Step 2: Convert to fraction form
611,720,377.47/917,867,544.35 = 305,036,405.19/x - Step 3: Cross multiply
611,720,377.47x = 917,867,544.35 × 305,036,405.19 - Step 4: Simplify right side
611,720,377.47x = 279,983,016,167,571,712 - Step 5: Solve for x
x = 279,983,016,167,571,712/611,720,377.47 - Step 6: Final answer
x = 457,697,710.39
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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.