Finding the Fourth Proportional to 708,588,748.20, 1,062,883,122.30 and 217,377,831.90
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Solution
The fourth proportional to 708,588,748.20, 1,062,883,122.30 and 217,377,831.90 is: 326,066,747.85
Step by Step Solution
- Step 1: Write the proportion equation
708,588,748.20 : 1,062,883,122.30 = 217,377,831.90 : x - Step 2: Convert to fraction form
708,588,748.20/1,062,883,122.30 = 217,377,831.90/x - Step 3: Cross multiply
708,588,748.20x = 1,062,883,122.30 × 217,377,831.90 - Step 4: Simplify right side
708,588,748.20x = 231,047,228,688,676,544 - Step 5: Solve for x
x = 231,047,228,688,676,544/708,588,748.20 - Step 6: Final answer
x = 326,066,747.85
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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.