Finding the Fourth Proportional to 1,411,310,544.54, 1,947,610,154.07 and 784,765,520.70
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Solution
The fourth proportional to 1,411,310,544.54, 1,947,610,154.07 and 784,765,520.70 is: 1,082,977,309.70
Step by Step Solution
- Step 1: Write the proportion equation
1,411,310,544.54 : 1,947,610,154.07 = 784,765,520.70 : x - Step 2: Convert to fraction form
1,411,310,544.54/1,947,610,154.07 = 784,765,520.70/x - Step 3: Cross multiply
1,411,310,544.54x = 1,947,610,154.07 × 784,765,520.70 - Step 4: Simplify right side
1,411,310,544.54x = 1,528,417,296,679,350,784 - Step 5: Solve for x
x = 1,528,417,296,679,350,784/1,411,310,544.54 - Step 6: Final answer
x = 1,082,977,309.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.