Finding the Fourth Proportional to 133,037,813.70, 199,556,720.55 and 72,571,637.70
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Solution
The fourth proportional to 133,037,813.70, 199,556,720.55 and 72,571,637.70 is: 108,857,456.55
Step by Step Solution
- Step 1: Write the proportion equation
133,037,813.70 : 199,556,720.55 = 72,571,637.70 : x - Step 2: Convert to fraction form
133,037,813.70/199,556,720.55 = 72,571,637.70/x - Step 3: Cross multiply
133,037,813.70x = 199,556,720.55 × 72,571,637.70 - Step 4: Simplify right side
133,037,813.70x = 14,482,158,024,354,746 - Step 5: Solve for x
x = 14,482,158,024,354,746/133,037,813.70 - Step 6: Final answer
x = 108,857,456.55
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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.