Finding the Fourth Proportional to 83,498,590.80, 125,035,309.80 and 79,672,215.60
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Solution
The fourth proportional to 83,498,590.80, 125,035,309.80 and 79,672,215.60 is: 119,305,488.45
Step by Step Solution
- Step 1: Write the proportion equation
83,498,590.80 : 125,035,309.80 = 79,672,215.60 : x - Step 2: Convert to fraction form
83,498,590.80/125,035,309.80 = 79,672,215.60/x - Step 3: Cross multiply
83,498,590.80x = 125,035,309.80 × 79,672,215.60 - Step 4: Simplify right side
83,498,590.80x = 9,961,840,159,998,392 - Step 5: Solve for x
x = 9,961,840,159,998,392/83,498,590.80 - Step 6: Final answer
x = 119,305,488.45
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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.