Finding the Fourth Proportional to 143,796,755.60, 215,695,133.40 and 97,880,253.20
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Solution
The fourth proportional to 143,796,755.60, 215,695,133.40 and 97,880,253.20 is: 146,820,379.80
Step by Step Solution
- Step 1: Write the proportion equation
143,796,755.60 : 215,695,133.40 = 97,880,253.20 : x - Step 2: Convert to fraction form
143,796,755.60/215,695,133.40 = 97,880,253.20/x - Step 3: Cross multiply
143,796,755.60x = 215,695,133.40 × 97,880,253.20 - Step 4: Simplify right side
143,796,755.60x = 21,112,294,271,199,780 - Step 5: Solve for x
x = 21,112,294,271,199,780/143,796,755.60 - Step 6: Final answer
x = 146,820,379.80
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1.5x scale
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.