Finding the Fourth Proportional to 498,325,636.20, 747,488,454.30 and 239,478,439.80
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Solution
The fourth proportional to 498,325,636.20, 747,488,454.30 and 239,478,439.80 is: 359,217,659.70
Step by Step Solution
- Step 1: Write the proportion equation
498,325,636.20 : 747,488,454.30 = 239,478,439.80 : x - Step 2: Convert to fraction form
498,325,636.20/747,488,454.30 = 239,478,439.80/x - Step 3: Cross multiply
498,325,636.20x = 747,488,454.30 × 239,478,439.80 - Step 4: Simplify right side
498,325,636.20x = 179,007,368,804,277,600 - Step 5: Solve for x
x = 179,007,368,804,277,600/498,325,636.20 - Step 6: Final answer
x = 359,217,659.70
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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.