Finding the Fourth Proportional to 7,420,090.54, 10,239,702.10 and 4,112,595.68
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Solution
The fourth proportional to 7,420,090.54, 10,239,702.10 and 4,112,595.68 is: 5,675,369.38
Step by Step Solution
- Step 1: Write the proportion equation
7,420,090.54 : 10,239,702.10 = 4,112,595.68 : x - Step 2: Convert to fraction form
7,420,090.54/10,239,702.10 = 4,112,595.68/x - Step 3: Cross multiply
7,420,090.54x = 10,239,702.10 × 4,112,595.68 - Step 4: Simplify right side
7,420,090.54x = 42,111,754,620,946.93 - Step 5: Solve for x
x = 42,111,754,620,946.93/7,420,090.54 - Step 6: Final answer
x = 5,675,369.38
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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.