Finding the Fourth Proportional to 652,823,999.20, 979,235,998.80 and 567,793,439.20
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Solution
The fourth proportional to 652,823,999.20, 979,235,998.80 and 567,793,439.20 is: 851,690,158.80
Step by Step Solution
- Step 1: Write the proportion equation
652,823,999.20 : 979,235,998.80 = 567,793,439.20 : x - Step 2: Convert to fraction form
652,823,999.20/979,235,998.80 = 567,793,439.20/x - Step 3: Cross multiply
652,823,999.20x = 979,235,998.80 × 567,793,439.20 - Step 4: Simplify right side
652,823,999.20x = 556,003,775,547,099,072 - Step 5: Solve for x
x = 556,003,775,547,099,072/652,823,999.20 - Step 6: Final answer
x = 851,690,158.80
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Similar ratio
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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.