Finding the Fourth Proportional to 673,408,840.20, 1,010,113,260.30 and 664,338,913.80
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Solution
The fourth proportional to 673,408,840.20, 1,010,113,260.30 and 664,338,913.80 is: 996,508,370.70
Step by Step Solution
- Step 1: Write the proportion equation
673,408,840.20 : 1,010,113,260.30 = 664,338,913.80 : x - Step 2: Convert to fraction form
673,408,840.20/1,010,113,260.30 = 664,338,913.80/x - Step 3: Cross multiply
673,408,840.20x = 1,010,113,260.30 × 664,338,913.80 - Step 4: Simplify right side
673,408,840.20x = 671,057,546,162,678,528 - Step 5: Solve for x
x = 671,057,546,162,678,528/673,408,840.20 - Step 6: Final answer
x = 996,508,370.70
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Double scale
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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.