Finding the Fourth Proportional to 904,219,831.06, 1,247,467,257.94 and 522,489,631.75
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Solution
The fourth proportional to 904,219,831.06, 1,247,467,257.94 and 522,489,631.75 is: 720,829,919.70
Step by Step Solution
- Step 1: Write the proportion equation
904,219,831.06 : 1,247,467,257.94 = 522,489,631.75 : x - Step 2: Convert to fraction form
904,219,831.06/1,247,467,257.94 = 522,489,631.75/x - Step 3: Cross multiply
904,219,831.06x = 1,247,467,257.94 × 522,489,631.75 - Step 4: Simplify right side
904,219,831.06x = 651,788,708,212,403,072 - Step 5: Solve for x
x = 651,788,708,212,403,072/904,219,831.06 - Step 6: Final answer
x = 720,829,919.70
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1.5x scale
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.