Finding the Fourth Proportional to 112,165,813.80, 168,248,720.70 and 112,165,813.80
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Solution
The fourth proportional to 112,165,813.80, 168,248,720.70 and 112,165,813.80 is: 168,248,720.70
Step by Step Solution
- Step 1: Write the proportion equation
112,165,813.80 : 168,248,720.70 = 112,165,813.80 : x - Step 2: Convert to fraction form
112,165,813.80/168,248,720.70 = 112,165,813.80/x - Step 3: Cross multiply
112,165,813.80x = 168,248,720.70 × 112,165,813.80 - Step 4: Simplify right side
112,165,813.80x = 18,871,754,678,124,404 - Step 5: Solve for x
x = 18,871,754,678,124,404/112,165,813.80 - Step 6: Final answer
x = 168,248,720.70
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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.