Finding the Fourth Proportional to 399,178,136.80, 598,767,205.20 and 194,837,298.40
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Solution
The fourth proportional to 399,178,136.80, 598,767,205.20 and 194,837,298.40 is: 292,255,947.60
Step by Step Solution
- Step 1: Write the proportion equation
399,178,136.80 : 598,767,205.20 = 194,837,298.40 : x - Step 2: Convert to fraction form
399,178,136.80/598,767,205.20 = 194,837,298.40/x - Step 3: Cross multiply
399,178,136.80x = 598,767,205.20 × 194,837,298.40 - Step 4: Simplify right side
399,178,136.80x = 116,662,184,631,686,448 - Step 5: Solve for x
x = 116,662,184,631,686,448/399,178,136.80 - Step 6: Final answer
x = 292,255,947.60
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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.