Finding the Fourth Proportional to 408,672,764,386.20, 559,872,328,149.64 and 393,393,311,281.08
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Solution
The fourth proportional to 408,672,764,386.20, 559,872,328,149.64 and 393,393,311,281.08 is: 538,939,827,312.04
Step by Step Solution
- Step 1: Write the proportion equation
408,672,764,386.20 : 559,872,328,149.64 = 393,393,311,281.08 : x - Step 2: Convert to fraction form
408,672,764,386.20/559,872,328,149.64 = 393,393,311,281.08/x - Step 3: Cross multiply
408,672,764,386.20x = 559,872,328,149.64 × 393,393,311,281.08 - Step 4: Simplify right side
408,672,764,386.20x = 220,250,029,065,434,302,513,152 - Step 5: Solve for x
x = 220,250,029,065,434,302,513,152/408,672,764,386.20 - Step 6: Final answer
x = 538,939,827,312.04
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Why These Related Problems?
These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.