Finding the Fourth Proportional to 9,989,562.24, 13,785,595.44 and 5,405,883.74
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Solution
The fourth proportional to 9,989,562.24, 13,785,595.44 and 5,405,883.74 is: 7,460,119.32
Step by Step Solution
- Step 1: Write the proportion equation
9,989,562.24 : 13,785,595.44 = 5,405,883.74 : x - Step 2: Convert to fraction form
9,989,562.24/13,785,595.44 = 5,405,883.74/x - Step 3: Cross multiply
9,989,562.24x = 13,785,595.44 × 5,405,883.74 - Step 4: Simplify right side
9,989,562.24x = 74,523,326,235,314.14 - Step 5: Solve for x
x = 74,523,326,235,314.14/9,989,562.24 - Step 6: Final answer
x = 7,460,119.32
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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.