Finding the Fourth Proportional to 687,750,817.29, 949,092,085.20 and 374,484,281.19
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Solution
The fourth proportional to 687,750,817.29, 949,092,085.20 and 374,484,281.19 is: 516,786,106.79
Step by Step Solution
- Step 1: Write the proportion equation
687,750,817.29 : 949,092,085.20 = 374,484,281.19 : x - Step 2: Convert to fraction form
687,750,817.29/949,092,085.20 = 374,484,281.19/x - Step 3: Cross multiply
687,750,817.29x = 949,092,085.20 × 374,484,281.19 - Step 4: Simplify right side
687,750,817.29x = 355,420,067,309,240,256 - Step 5: Solve for x
x = 355,420,067,309,240,256/687,750,817.29 - Step 6: Final answer
x = 516,786,106.79
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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.