Finding the Fourth Proportional to 620,656,811.60, 930,854,580.60 and 313,660,331.60
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Solution
The fourth proportional to 620,656,811.60, 930,854,580.60 and 313,660,331.60 is: 470,424,477.69
Step by Step Solution
- Step 1: Write the proportion equation
620,656,811.60 : 930,854,580.60 = 313,660,331.60 : x - Step 2: Convert to fraction form
620,656,811.60/930,854,580.60 = 313,660,331.60/x - Step 3: Cross multiply
620,656,811.60x = 930,854,580.60 × 313,660,331.60 - Step 4: Simplify right side
620,656,811.60x = 291,972,156,422,374,976 - Step 5: Solve for x
x = 291,972,156,422,374,976/620,656,811.60 - Step 6: Final answer
x = 470,424,477.69
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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.