Finding the Fourth Proportional to 442,868,785.80, 664,303,178.70 and 442,868,785.80
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Solution
The fourth proportional to 442,868,785.80, 664,303,178.70 and 442,868,785.80 is: 664,303,178.70
Step by Step Solution
- Step 1: Write the proportion equation
442,868,785.80 : 664,303,178.70 = 442,868,785.80 : x - Step 2: Convert to fraction form
442,868,785.80/664,303,178.70 = 442,868,785.80/x - Step 3: Cross multiply
442,868,785.80x = 664,303,178.70 × 442,868,785.80 - Step 4: Simplify right side
442,868,785.80x = 294,199,142,153,949,440 - Step 5: Solve for x
x = 294,199,142,153,949,440/442,868,785.80 - Step 6: Final answer
x = 664,303,178.70
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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.