Finding the Fourth Proportional to 879,648,962.44, 1,213,882,309.74 and 488,533,580.68
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Solution
The fourth proportional to 879,648,962.44, 1,213,882,309.74 and 488,533,580.68 is: 674,157,870.49
Step by Step Solution
- Step 1: Write the proportion equation
879,648,962.44 : 1,213,882,309.74 = 488,533,580.68 : x - Step 2: Convert to fraction form
879,648,962.44/1,213,882,309.74 = 488,533,580.68/x - Step 3: Cross multiply
879,648,962.44x = 1,213,882,309.74 × 488,533,580.68 - Step 4: Simplify right side
879,648,962.44x = 593,022,271,301,391,104 - Step 5: Solve for x
x = 593,022,271,301,391,104/879,648,962.44 - Step 6: Final answer
x = 674,157,870.49
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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.