Finding the Fourth Proportional to 6,131,681.64, 8,461,642.41 and 3,340,921.23
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Solution
The fourth proportional to 6,131,681.64, 8,461,642.41 and 3,340,921.23 is: 4,610,428.66
Step by Step Solution
- Step 1: Write the proportion equation
6,131,681.64 : 8,461,642.41 = 3,340,921.23 : x - Step 2: Convert to fraction form
6,131,681.64/8,461,642.41 = 3,340,921.23/x - Step 3: Cross multiply
6,131,681.64x = 8,461,642.41 × 3,340,921.23 - Step 4: Simplify right side
6,131,681.64x = 28,269,680,768,237.36 - Step 5: Solve for x
x = 28,269,680,768,237.36/6,131,681.64 - Step 6: Final answer
x = 4,610,428.66
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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.