Finding the Fourth Proportional to 112,337,356.05, 168,506,034.08 and 91,930,021.65
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Solution
The fourth proportional to 112,337,356.05, 168,506,034.08 and 91,930,021.65 is: 137,895,032.48
Step by Step Solution
- Step 1: Write the proportion equation
112,337,356.05 : 168,506,034.08 = 91,930,021.65 : x - Step 2: Convert to fraction form
112,337,356.05/168,506,034.08 = 91,930,021.65/x - Step 3: Cross multiply
112,337,356.05x = 168,506,034.08 × 91,930,021.65 - Step 4: Simplify right side
112,337,356.05x = 15,490,763,360,670,388 - Step 5: Solve for x
x = 15,490,763,360,670,388/112,337,356.05 - Step 6: Final answer
x = 137,895,032.48
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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.