Finding the Fourth Proportional to 22,809,962.68, 31,477,486.08 and 12,355,779.40
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Solution
The fourth proportional to 22,809,962.68, 31,477,486.08 and 12,355,779.40 is: 17,050,833.42
Step by Step Solution
- Step 1: Write the proportion equation
22,809,962.68 : 31,477,486.08 = 12,355,779.40 : x - Step 2: Convert to fraction form
22,809,962.68/31,477,486.08 = 12,355,779.40/x - Step 3: Cross multiply
22,809,962.68x = 31,477,486.08 × 12,355,779.40 - Step 4: Simplify right side
22,809,962.68x = 388,928,874,071,050.75 - Step 5: Solve for x
x = 388,928,874,071,050.75/22,809,962.68 - Step 6: Final answer
x = 17,050,833.42
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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.