Finding the Fourth Proportional to 1,617,295,905.20, 2,425,943,857.80 and 1,553,806,420.40
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Solution
The fourth proportional to 1,617,295,905.20, 2,425,943,857.80 and 1,553,806,420.40 is: 2,330,709,630.60
Step by Step Solution
- Step 1: Write the proportion equation
1,617,295,905.20 : 2,425,943,857.80 = 1,553,806,420.40 : x - Step 2: Convert to fraction form
1,617,295,905.20/2,425,943,857.80 = 1,553,806,420.40/x - Step 3: Cross multiply
1,617,295,905.20x = 2,425,943,857.80 × 1,553,806,420.40 - Step 4: Simplify right side
1,617,295,905.20x = 3,769,447,141,779,585,024 - Step 5: Solve for x
x = 3,769,447,141,779,585,024/1,617,295,905.20 - Step 6: Final answer
x = 2,330,709,630.60
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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.