Finding the Fourth Proportional to 742,574,857.80, 1,113,862,286.70 and 742,574,857.80
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Solution
The fourth proportional to 742,574,857.80, 1,113,862,286.70 and 742,574,857.80 is: 1,113,862,286.70
Step by Step Solution
- Step 1: Write the proportion equation
742,574,857.80 : 1,113,862,286.70 = 742,574,857.80 : x - Step 2: Convert to fraction form
742,574,857.80/1,113,862,286.70 = 742,574,857.80/x - Step 3: Cross multiply
742,574,857.80x = 1,113,862,286.70 × 742,574,857.80 - Step 4: Simplify right side
742,574,857.80x = 827,126,129,155,035,264 - Step 5: Solve for x
x = 827,126,129,155,035,264/742,574,857.80 - Step 6: Final answer
x = 1,113,862,286.70
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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.