Finding the Fourth Proportional to 880,402,423.20, 1,317,468,351.60 and 766,636,432.80
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Solution
The fourth proportional to 880,402,423.20, 1,317,468,351.60 and 766,636,432.80 is: 1,147,224,508.68
Step by Step Solution
- Step 1: Write the proportion equation
880,402,423.20 : 1,317,468,351.60 = 766,636,432.80 : x - Step 2: Convert to fraction form
880,402,423.20/1,317,468,351.60 = 766,636,432.80/x - Step 3: Cross multiply
880,402,423.20x = 1,317,468,351.60 × 766,636,432.80 - Step 4: Simplify right side
880,402,423.20x = 1,010,019,237,397,520,000 - Step 5: Solve for x
x = 1,010,019,237,397,520,000/880,402,423.20 - Step 6: Final answer
x = 1,147,224,508.68
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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.