Finding the Fourth Proportional to 398,672,001.20, 598,119,976.20 and 194,206,746.80
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Solution
The fourth proportional to 398,672,001.20, 598,119,976.20 and 194,206,746.80 is: 291,364,666.75
Step by Step Solution
- Step 1: Write the proportion equation
398,672,001.20 : 598,119,976.20 = 194,206,746.80 : x - Step 2: Convert to fraction form
398,672,001.20/598,119,976.20 = 194,206,746.80/x - Step 3: Cross multiply
398,672,001.20x = 598,119,976.20 × 194,206,746.80 - Step 4: Simplify right side
398,672,001.20x = 116,158,934,773,895,440 - Step 5: Solve for x
x = 116,158,934,773,895,440/398,672,001.20 - Step 6: Final answer
x = 291,364,666.75
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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.