Finding the Fourth Proportional to 102,519,139.20, 153,778,708.80 and 30,715,555.20
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Solution
The fourth proportional to 102,519,139.20, 153,778,708.80 and 30,715,555.20 is: 46,073,332.80
Step by Step Solution
- Step 1: Write the proportion equation
102,519,139.20 : 153,778,708.80 = 30,715,555.20 : x - Step 2: Convert to fraction form
102,519,139.20/153,778,708.80 = 30,715,555.20/x - Step 3: Cross multiply
102,519,139.20x = 153,778,708.80 × 30,715,555.20 - Step 4: Simplify right side
102,519,139.20x = 4,723,398,418,731,126 - Step 5: Solve for x
x = 4,723,398,418,731,126/102,519,139.20 - Step 6: Final answer
x = 46,073,332.80
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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.