Finding the Fourth Proportional to 13,593,641.32, 18,759,756.90 and 7,482,638.44
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Solution
The fourth proportional to 13,593,641.32, 18,759,756.90 and 7,482,638.44 is: 10,326,333.82
Step by Step Solution
- Step 1: Write the proportion equation
13,593,641.32 : 18,759,756.90 = 7,482,638.44 : x - Step 2: Convert to fraction form
13,593,641.32/18,759,756.90 = 7,482,638.44/x - Step 3: Cross multiply
13,593,641.32x = 18,759,756.90 × 7,482,638.44 - Step 4: Simplify right side
13,593,641.32x = 140,372,478,104,995.23 - Step 5: Solve for x
x = 140,372,478,104,995.23/13,593,641.32 - Step 6: Final answer
x = 10,326,333.82
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1.5x scale
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.