Finding the Fourth Proportional to 153,789,592.79, 212,230,284.84 and 83,225,206.32
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Solution
The fourth proportional to 153,789,592.79, 212,230,284.84 and 83,225,206.32 is: 114,851,134.74
Step by Step Solution
- Step 1: Write the proportion equation
153,789,592.79 : 212,230,284.84 = 83,225,206.32 : x - Step 2: Convert to fraction form
153,789,592.79/212,230,284.84 = 83,225,206.32/x - Step 3: Cross multiply
153,789,592.79x = 212,230,284.84 × 83,225,206.32 - Step 4: Simplify right side
153,789,592.79x = 17,662,909,243,508,844 - Step 5: Solve for x
x = 17,662,909,243,508,844/153,789,592.79 - Step 6: Final answer
x = 114,851,134.74
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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.