Finding the Fourth Proportional to 977,432,080.80, 1,466,148,121.20 and 897,078,201.60
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Solution
The fourth proportional to 977,432,080.80, 1,466,148,121.20 and 897,078,201.60 is: 1,345,617,302.40
Step by Step Solution
- Step 1: Write the proportion equation
977,432,080.80 : 1,466,148,121.20 = 897,078,201.60 : x - Step 2: Convert to fraction form
977,432,080.80/1,466,148,121.20 = 897,078,201.60/x - Step 3: Cross multiply
977,432,080.80x = 1,466,148,121.20 × 897,078,201.60 - Step 4: Simplify right side
977,432,080.80x = 1,315,249,519,845,314,816 - Step 5: Solve for x
x = 1,315,249,519,845,314,816/977,432,080.80 - Step 6: Final answer
x = 1,345,617,302.40
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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.