Finding the Fourth Proportional to 508,775,467.30, 763,163,200.95 and 181,620,387.70
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Solution
The fourth proportional to 508,775,467.30, 763,163,200.95 and 181,620,387.70 is: 272,430,581.55
Step by Step Solution
- Step 1: Write the proportion equation
508,775,467.30 : 763,163,200.95 = 181,620,387.70 : x - Step 2: Convert to fraction form
508,775,467.30/763,163,200.95 = 181,620,387.70/x - Step 3: Cross multiply
508,775,467.30x = 763,163,200.95 × 181,620,387.70 - Step 4: Simplify right side
508,775,467.30x = 138,605,996,434,912,000 - Step 5: Solve for x
x = 138,605,996,434,912,000/508,775,467.30 - Step 6: Final answer
x = 272,430,581.55
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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.