Finding the Fourth Proportional to 958,546,183.78, 1,322,692,963.08 and 556,581,358.68
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Solution
The fourth proportional to 958,546,183.78, 1,322,692,963.08 and 556,581,358.68 is: 768,023,762.41
Step by Step Solution
- Step 1: Write the proportion equation
958,546,183.78 : 1,322,692,963.08 = 556,581,358.68 : x - Step 2: Convert to fraction form
958,546,183.78/1,322,692,963.08 = 556,581,358.68/x - Step 3: Cross multiply
958,546,183.78x = 1,322,692,963.08 × 556,581,358.68 - Step 4: Simplify right side
958,546,183.78x = 736,186,246,507,541,376 - Step 5: Solve for x
x = 736,186,246,507,541,376/958,546,183.78 - Step 6: Final answer
x = 768,023,762.41
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Double scale
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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.