Finding the Fourth Proportional to 77,613,372.84, 116,420,059.36 and 31,544,448.38
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Solution
The fourth proportional to 77,613,372.84, 116,420,059.36 and 31,544,448.38 is: 47,316,672.62
Step by Step Solution
- Step 1: Write the proportion equation
77,613,372.84 : 116,420,059.36 = 31,544,448.38 : x - Step 2: Convert to fraction form
77,613,372.84/116,420,059.36 = 31,544,448.38/x - Step 3: Cross multiply
77,613,372.84x = 116,420,059.36 × 31,544,448.38 - Step 4: Simplify right side
77,613,372.84x = 3,672,406,553,011,384 - Step 5: Solve for x
x = 3,672,406,553,011,384/77,613,372.84 - Step 6: Final answer
x = 47,316,672.62
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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.