Finding the Fourth Proportional to 19,912,187.23, 29,871,430.13 and 7,132,408.99
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Solution
The fourth proportional to 19,912,187.23, 29,871,430.13 and 7,132,408.99 is: 10,699,741.54
Step by Step Solution
- Step 1: Write the proportion equation
19,912,187.23 : 29,871,430.13 = 7,132,408.99 : x - Step 2: Convert to fraction form
19,912,187.23/29,871,430.13 = 7,132,408.99/x - Step 3: Cross multiply
19,912,187.23x = 29,871,430.13 × 7,132,408.99 - Step 4: Simplify right side
19,912,187.23x = 213,055,256,803,368.88 - Step 5: Solve for x
x = 213,055,256,803,368.88/19,912,187.23 - Step 6: Final answer
x = 10,699,741.54
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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.