Finding the Fourth Proportional to 853,187,139.24, 1,279,780,708.87 and 239,771,364.99
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Solution
The fourth proportional to 853,187,139.24, 1,279,780,708.87 and 239,771,364.99 is: 359,657,047.49
Step by Step Solution
- Step 1: Write the proportion equation
853,187,139.24 : 1,279,780,708.87 = 239,771,364.99 : x - Step 2: Convert to fraction form
853,187,139.24/1,279,780,708.87 = 239,771,364.99/x - Step 3: Cross multiply
853,187,139.24x = 1,279,780,708.87 × 239,771,364.99 - Step 4: Simplify right side
853,187,139.24x = 306,854,767,455,630,336 - Step 5: Solve for x
x = 306,854,767,455,630,336/853,187,139.24 - Step 6: Final answer
x = 359,657,047.49
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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.