Finding the Fourth Proportional to 7,757,130.78, 10,704,620.88 and 4,224,847.14
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Solution
The fourth proportional to 7,757,130.78, 10,704,620.88 and 4,224,847.14 is: 5,830,169.45
Step by Step Solution
- Step 1: Write the proportion equation
7,757,130.78 : 10,704,620.88 = 4,224,847.14 : x - Step 2: Convert to fraction form
7,757,130.78/10,704,620.88 = 4,224,847.14/x - Step 3: Cross multiply
7,757,130.78x = 10,704,620.88 × 4,224,847.14 - Step 4: Simplify right side
7,757,130.78x = 45,225,386,909,652.28 - Step 5: Solve for x
x = 45,225,386,909,652.28/7,757,130.78 - Step 6: Final answer
x = 5,830,169.45
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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.