Finding the Fourth Proportional to 749,138,775.60, 1,122,952,336.20 and 340,488,202.80
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Solution
The fourth proportional to 749,138,775.60, 1,122,952,336.20 and 340,488,202.80 is: 510,388,776.07
Step by Step Solution
- Step 1: Write the proportion equation
749,138,775.60 : 1,122,952,336.20 = 340,488,202.80 : x - Step 2: Convert to fraction form
749,138,775.60/1,122,952,336.20 = 340,488,202.80/x - Step 3: Cross multiply
749,138,775.60x = 1,122,952,336.20 × 340,488,202.80 - Step 4: Simplify right side
749,138,775.60x = 382,352,022,782,799,424 - Step 5: Solve for x
x = 382,352,022,782,799,424/749,138,775.60 - Step 6: Final answer
x = 510,388,776.07
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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.