Finding the Fourth Proportional to 1,094,124,421.80, 1,641,186,632.70 and 328,219,525.80
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Solution
The fourth proportional to 1,094,124,421.80, 1,641,186,632.70 and 328,219,525.80 is: 492,329,288.70
Step by Step Solution
- Step 1: Write the proportion equation
1,094,124,421.80 : 1,641,186,632.70 = 328,219,525.80 : x - Step 2: Convert to fraction form
1,094,124,421.80/1,641,186,632.70 = 328,219,525.80/x - Step 3: Cross multiply
1,094,124,421.80x = 1,641,186,632.70 × 328,219,525.80 - Step 4: Simplify right side
1,094,124,421.80x = 538,669,498,334,092,800 - Step 5: Solve for x
x = 538,669,498,334,092,800/1,094,124,421.80 - Step 6: Final answer
x = 492,329,288.70
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Double scale
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Similar ratio
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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.