Finding the Fourth Proportional to 749,138,774.60, 1,122,952,334.70 and 340,488,201.80
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Solution
The fourth proportional to 749,138,774.60, 1,122,952,334.70 and 340,488,201.80 is: 510,388,774.57
Step by Step Solution
- Step 1: Write the proportion equation
749,138,774.60 : 1,122,952,334.70 = 340,488,201.80 : x - Step 2: Convert to fraction form
749,138,774.60/1,122,952,334.70 = 340,488,201.80/x - Step 3: Cross multiply
749,138,774.60x = 1,122,952,334.70 × 340,488,201.80 - Step 4: Simplify right side
749,138,774.60x = 382,352,021,149,114,752 - Step 5: Solve for x
x = 382,352,021,149,114,752/749,138,774.60 - Step 6: Final answer
x = 510,388,774.57
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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.