Finding the Fourth Proportional to 970,585,529.80, 1,455,878,294.70 and 539,764,025.80
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Solution
The fourth proportional to 970,585,529.80, 1,455,878,294.70 and 539,764,025.80 is: 809,646,038.70
Step by Step Solution
- Step 1: Write the proportion equation
970,585,529.80 : 1,455,878,294.70 = 539,764,025.80 : x - Step 2: Convert to fraction form
970,585,529.80/1,455,878,294.70 = 539,764,025.80/x - Step 3: Cross multiply
970,585,529.80x = 1,455,878,294.70 × 539,764,025.80 - Step 4: Simplify right side
970,585,529.80x = 785,830,729,422,110,720 - Step 5: Solve for x
x = 785,830,729,422,110,720/970,585,529.80 - Step 6: Final answer
x = 809,646,038.70
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Double scale
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Similar ratio
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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.