Finding the Fourth Proportional to 10,366,283.30, 15,549,424.95 and 7,712,075.30
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Solution
The fourth proportional to 10,366,283.30, 15,549,424.95 and 7,712,075.30 is: 11,568,112.95
Step by Step Solution
- Step 1: Write the proportion equation
10,366,283.30 : 15,549,424.95 = 7,712,075.30 : x - Step 2: Convert to fraction form
10,366,283.30/15,549,424.95 = 7,712,075.30/x - Step 3: Cross multiply
10,366,283.30x = 15,549,424.95 × 7,712,075.30 - Step 4: Simplify right side
10,366,283.30x = 119,918,336,086,098.72 - Step 5: Solve for x
x = 119,918,336,086,098.72/10,366,283.30 - Step 6: Final answer
x = 11,568,112.95
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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.