Finding the Fourth Proportional to 579,492,700.20, 869,239,050.30 and 349,343,317.80
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Solution
The fourth proportional to 579,492,700.20, 869,239,050.30 and 349,343,317.80 is: 524,014,976.70
Step by Step Solution
- Step 1: Write the proportion equation
579,492,700.20 : 869,239,050.30 = 349,343,317.80 : x - Step 2: Convert to fraction form
579,492,700.20/869,239,050.30 = 349,343,317.80/x - Step 3: Cross multiply
579,492,700.20x = 869,239,050.30 × 349,343,317.80 - Step 4: Simplify right side
579,492,700.20x = 303,662,853,793,123,072 - Step 5: Solve for x
x = 303,662,853,793,123,072/579,492,700.20 - Step 6: Final answer
x = 524,014,976.70
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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.