Finding the Fourth Proportional to 1,069,723,813.80, 1,604,585,720.70 and 974,489,586.60
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Solution
The fourth proportional to 1,069,723,813.80, 1,604,585,720.70 and 974,489,586.60 is: 1,461,734,379.90
Step by Step Solution
- Step 1: Write the proportion equation
1,069,723,813.80 : 1,604,585,720.70 = 974,489,586.60 : x - Step 2: Convert to fraction form
1,069,723,813.80/1,604,585,720.70 = 974,489,586.60/x - Step 3: Cross multiply
1,069,723,813.80x = 1,604,585,720.70 × 974,489,586.60 - Step 4: Simplify right side
1,069,723,813.80x = 1,563,652,075,629,206,272 - Step 5: Solve for x
x = 1,563,652,075,629,206,272/1,069,723,813.80 - Step 6: Final answer
x = 1,461,734,379.90
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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.