Finding the Fourth Proportional to 295,257,828.60, 442,886,742.90 and 280,477,207.80
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Solution
The fourth proportional to 295,257,828.60, 442,886,742.90 and 280,477,207.80 is: 420,715,811.70
Step by Step Solution
- Step 1: Write the proportion equation
295,257,828.60 : 442,886,742.90 = 280,477,207.80 : x - Step 2: Convert to fraction form
295,257,828.60/442,886,742.90 = 280,477,207.80/x - Step 3: Cross multiply
295,257,828.60x = 442,886,742.90 × 280,477,207.80 - Step 4: Simplify right side
295,257,828.60x = 124,219,637,020,228,480 - Step 5: Solve for x
x = 124,219,637,020,228,480/295,257,828.60 - Step 6: Final answer
x = 420,715,811.70
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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.