Finding the Fourth Proportional to 7,242,316.70, 10,863,475.05 and 7,130,342.30
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Solution
The fourth proportional to 7,242,316.70, 10,863,475.05 and 7,130,342.30 is: 10,695,513.45
Step by Step Solution
- Step 1: Write the proportion equation
7,242,316.70 : 10,863,475.05 = 7,130,342.30 : x - Step 2: Convert to fraction form
7,242,316.70/10,863,475.05 = 7,130,342.30/x - Step 3: Cross multiply
7,242,316.70x = 10,863,475.05 × 7,130,342.30 - Step 4: Simplify right side
7,242,316.70x = 77,460,295,674,009.62 - Step 5: Solve for x
x = 77,460,295,674,009.62/7,242,316.70 - Step 6: Final answer
x = 10,695,513.45
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Double scale
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Similar ratio
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1.5x scale
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.