Finding the Fourth Proportional to 70,588,977.87, 97,415,152.28 and 39,228,348.76
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Solution
The fourth proportional to 70,588,977.87, 97,415,152.28 and 39,228,348.76 is: 54,136,434.38
Step by Step Solution
- Step 1: Write the proportion equation
70,588,977.87 : 97,415,152.28 = 39,228,348.76 : x - Step 2: Convert to fraction form
70,588,977.87/97,415,152.28 = 39,228,348.76/x - Step 3: Cross multiply
70,588,977.87x = 97,415,152.28 × 39,228,348.76 - Step 4: Simplify right side
70,588,977.87x = 3,821,435,568,148,349 - Step 5: Solve for x
x = 3,821,435,568,148,349/70,588,977.87 - Step 6: Final answer
x = 54,136,434.38
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1.5x scale
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.