Finding the Fourth Proportional to 874,729,405.76, 1,207,128,750.36 and 478,277,977.28
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Solution
The fourth proportional to 874,729,405.76, 1,207,128,750.36 and 478,277,977.28 is: 660,024,795.37
Step by Step Solution
- Step 1: Write the proportion equation
874,729,405.76 : 1,207,128,750.36 = 478,277,977.28 : x - Step 2: Convert to fraction form
874,729,405.76/1,207,128,750.36 = 478,277,977.28/x - Step 3: Cross multiply
874,729,405.76x = 1,207,128,750.36 × 478,277,977.28 - Step 4: Simplify right side
874,729,405.76x = 577,343,097,038,714,752 - Step 5: Solve for x
x = 577,343,097,038,714,752/874,729,405.76 - Step 6: Final answer
x = 660,024,795.37
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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.