Finding the Fourth Proportional to 653,205,763.80, 979,808,645.70 and 265,214,467.80
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Solution
The fourth proportional to 653,205,763.80, 979,808,645.70 and 265,214,467.80 is: 397,821,701.70
Step by Step Solution
- Step 1: Write the proportion equation
653,205,763.80 : 979,808,645.70 = 265,214,467.80 : x - Step 2: Convert to fraction form
653,205,763.80/979,808,645.70 = 265,214,467.80/x - Step 3: Cross multiply
653,205,763.80x = 979,808,645.70 × 265,214,467.80 - Step 4: Simplify right side
653,205,763.80x = 259,859,428,515,164,288 - Step 5: Solve for x
x = 259,859,428,515,164,288/653,205,763.80 - Step 6: Final answer
x = 397,821,701.70
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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.