Finding the Fourth Proportional to 13,871,459.98, 19,129,970.50 and 11,910,722.95
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Solution
The fourth proportional to 13,871,459.98, 19,129,970.50 and 11,910,722.95 is: 16,425,940.67
Step by Step Solution
- Step 1: Write the proportion equation
13,871,459.98 : 19,129,970.50 = 11,910,722.95 : x - Step 2: Convert to fraction form
13,871,459.98/19,129,970.50 = 11,910,722.95/x - Step 3: Cross multiply
13,871,459.98x = 19,129,970.50 × 11,910,722.95 - Step 4: Simplify right side
13,871,459.98x = 227,851,778,667,172.97 - Step 5: Solve for x
x = 227,851,778,667,172.97/13,871,459.98 - Step 6: Final answer
x = 16,425,940.67
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.