Finding the Fourth Proportional to 99,762,603.60, 149,643,905.40 and 65,498,437.20
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Solution
The fourth proportional to 99,762,603.60, 149,643,905.40 and 65,498,437.20 is: 98,247,655.80
Step by Step Solution
- Step 1: Write the proportion equation
99,762,603.60 : 149,643,905.40 = 65,498,437.20 : x - Step 2: Convert to fraction form
99,762,603.60/149,643,905.40 = 65,498,437.20/x - Step 3: Cross multiply
99,762,603.60x = 149,643,905.40 × 65,498,437.20 - Step 4: Simplify right side
99,762,603.60x = 9,801,441,940,204,642 - Step 5: Solve for x
x = 9,801,441,940,204,642/99,762,603.60 - Step 6: Final answer
x = 98,247,655.80
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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.