Finding the Fourth Proportional to 129,058,403.60, 193,587,605.40 and 118,854,736.40
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Solution
The fourth proportional to 129,058,403.60, 193,587,605.40 and 118,854,736.40 is: 178,282,104.60
Step by Step Solution
- Step 1: Write the proportion equation
129,058,403.60 : 193,587,605.40 = 118,854,736.40 : x - Step 2: Convert to fraction form
129,058,403.60/193,587,605.40 = 118,854,736.40/x - Step 3: Cross multiply
129,058,403.60x = 193,587,605.40 × 118,854,736.40 - Step 4: Simplify right side
129,058,403.60x = 23,008,803,810,124,220 - Step 5: Solve for x
x = 23,008,803,810,124,220/129,058,403.60 - Step 6: Final answer
x = 178,282,104.60
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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.