Finding the Fourth Proportional to 812,966,507.57, 1,121,893,778.81 and 460,542,497.83
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Solution
The fourth proportional to 812,966,507.57, 1,121,893,778.81 and 460,542,497.83 is: 635,548,646.07
Step by Step Solution
- Step 1: Write the proportion equation
812,966,507.57 : 1,121,893,778.81 = 460,542,497.83 : x - Step 2: Convert to fraction form
812,966,507.57/1,121,893,778.81 = 460,542,497.83/x - Step 3: Cross multiply
812,966,507.57x = 1,121,893,778.81 × 460,542,497.83 - Step 4: Simplify right side
812,966,507.57x = 516,679,763,191,441,536 - Step 5: Solve for x
x = 516,679,763,191,441,536/812,966,507.57 - Step 6: Final answer
x = 635,548,646.07
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.