Finding the Fourth Proportional to 390,444,720,416.16, 585,893,033,459.84 and 163,783,872,629.54
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Solution
The fourth proportional to 390,444,720,416.16, 585,893,033,459.84 and 163,783,872,629.54 is: 245,770,591,709.99
Step by Step Solution
- Step 1: Write the proportion equation
390,444,720,416.16 : 585,893,033,459.84 = 163,783,872,629.54 : x - Step 2: Convert to fraction form
390,444,720,416.16/585,893,033,459.84 = 163,783,872,629.54/x - Step 3: Cross multiply
390,444,720,416.16x = 585,893,033,459.84 × 163,783,872,629.54 - Step 4: Simplify right side
390,444,720,416.16x = 95,959,829,966,721,258,618,880 - Step 5: Solve for x
x = 95,959,829,966,721,258,618,880/390,444,720,416.16 - Step 6: Final answer
x = 245,770,591,709.99
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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.