Finding the Fourth Proportional to 143,195,887.60, 214,905,805.80 and 66,528,415.60
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Solution
The fourth proportional to 143,195,887.60, 214,905,805.80 and 66,528,415.60 is: 99,844,646.40
Step by Step Solution
- Step 1: Write the proportion equation
143,195,887.60 : 214,905,805.80 = 66,528,415.60 : x - Step 2: Convert to fraction form
143,195,887.60/214,905,805.80 = 66,528,415.60/x - Step 3: Cross multiply
143,195,887.60x = 214,905,805.80 × 66,528,415.60 - Step 4: Simplify right side
143,195,887.60x = 14,297,342,763,115,292 - Step 5: Solve for x
x = 14,297,342,763,115,292/143,195,887.60 - Step 6: Final answer
x = 99,844,646.40
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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.