Finding the Fourth Proportional to 1,340,372,769.20, 2,010,559,153.80 and 1,317,697,953.20
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Solution
The fourth proportional to 1,340,372,769.20, 2,010,559,153.80 and 1,317,697,953.20 is: 1,976,546,929.80
Step by Step Solution
- Step 1: Write the proportion equation
1,340,372,769.20 : 2,010,559,153.80 = 1,317,697,953.20 : x - Step 2: Convert to fraction form
1,340,372,769.20/2,010,559,153.80 = 1,317,697,953.20/x - Step 3: Cross multiply
1,340,372,769.20x = 2,010,559,153.80 × 1,317,697,953.20 - Step 4: Simplify right side
1,340,372,769.20x = 2,649,309,681,749,784,064 - Step 5: Solve for x
x = 2,649,309,681,749,784,064/1,340,372,769.20 - Step 6: Final answer
x = 1,976,546,929.80
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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.