Finding the Fourth Proportional to 70,220,825.12, 96,908,505.36 and 39,279,149.12
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Solution
The fourth proportional to 70,220,825.12, 96,908,505.36 and 39,279,149.12 is: 54,207,332.75
Step by Step Solution
- Step 1: Write the proportion equation
70,220,825.12 : 96,908,505.36 = 39,279,149.12 : x - Step 2: Convert to fraction form
70,220,825.12/96,908,505.36 = 39,279,149.12/x - Step 3: Cross multiply
70,220,825.12x = 96,908,505.36 × 39,279,149.12 - Step 4: Simplify right side
70,220,825.12x = 3,806,483,633,031,759 - Step 5: Solve for x
x = 3,806,483,633,031,759/70,220,825.12 - Step 6: Final answer
x = 54,207,332.75
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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.