Finding the Fourth Proportional to 79,145,998.20, 118,551,035.70 and 65,709,070.20
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Solution
The fourth proportional to 79,145,998.20, 118,551,035.70 and 65,709,070.20 is: 98,424,159.20
Step by Step Solution
- Step 1: Write the proportion equation
79,145,998.20 : 118,551,035.70 = 65,709,070.20 : x - Step 2: Convert to fraction form
79,145,998.20/118,551,035.70 = 65,709,070.20/x - Step 3: Cross multiply
79,145,998.20x = 118,551,035.70 × 65,709,070.20 - Step 4: Simplify right side
79,145,998.20x = 7,789,878,327,094,007 - Step 5: Solve for x
x = 7,789,878,327,094,007/79,145,998.20 - Step 6: Final answer
x = 98,424,159.20
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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.