Finding the Fourth Proportional to 14,356,378.98, 19,808,395.42 and 8,160,936.03
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Solution
The fourth proportional to 14,356,378.98, 19,808,395.42 and 8,160,936.03 is: 11,260,154.67
Step by Step Solution
- Step 1: Write the proportion equation
14,356,378.98 : 19,808,395.42 = 8,160,936.03 : x - Step 2: Convert to fraction form
14,356,378.98/19,808,395.42 = 8,160,936.03/x - Step 3: Cross multiply
14,356,378.98x = 19,808,395.42 × 8,160,936.03 - Step 4: Simplify right side
14,356,378.98x = 161,655,047,879,565 - Step 5: Solve for x
x = 161,655,047,879,565/14,356,378.98 - Step 6: Final answer
x = 11,260,154.67
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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.