Finding the Fourth Proportional to 977,389,523.40, 1,466,084,285.10 and 878,754,073.80
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Solution
The fourth proportional to 977,389,523.40, 1,466,084,285.10 and 878,754,073.80 is: 1,318,131,110.70
Step by Step Solution
- Step 1: Write the proportion equation
977,389,523.40 : 1,466,084,285.10 = 878,754,073.80 : x - Step 2: Convert to fraction form
977,389,523.40/1,466,084,285.10 = 878,754,073.80/x - Step 3: Cross multiply
977,389,523.40x = 1,466,084,285.10 × 878,754,073.80 - Step 4: Simplify right side
977,389,523.40x = 1,288,327,538,065,785,600 - Step 5: Solve for x
x = 1,288,327,538,065,785,600/977,389,523.40 - Step 6: Final answer
x = 1,318,131,110.70
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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.