Finding the Fourth Proportional to 516,461,921.70, 774,692,882.55 and 516,461,921.70
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Solution
The fourth proportional to 516,461,921.70, 774,692,882.55 and 516,461,921.70 is: 774,692,882.55
Step by Step Solution
- Step 1: Write the proportion equation
516,461,921.70 : 774,692,882.55 = 516,461,921.70 : x - Step 2: Convert to fraction form
516,461,921.70/774,692,882.55 = 516,461,921.70/x - Step 3: Cross multiply
516,461,921.70x = 774,692,882.55 × 516,461,921.70 - Step 4: Simplify right side
516,461,921.70x = 400,099,374,849,085,376 - Step 5: Solve for x
x = 400,099,374,849,085,376/516,461,921.70 - Step 6: Final answer
x = 774,692,882.55
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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.