Finding the Fourth Proportional to 651,464,697.78, 899,027,671.05 and 354,106,756.49
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Solution
The fourth proportional to 651,464,697.78, 899,027,671.05 and 354,106,756.49 is: 488,670,796.24
Step by Step Solution
- Step 1: Write the proportion equation
651,464,697.78 : 899,027,671.05 = 354,106,756.49 : x - Step 2: Convert to fraction form
651,464,697.78/899,027,671.05 = 354,106,756.49/x - Step 3: Cross multiply
651,464,697.78x = 899,027,671.05 × 354,106,756.49 - Step 4: Simplify right side
651,464,697.78x = 318,351,772,585,779,008 - Step 5: Solve for x
x = 318,351,772,585,779,008/651,464,697.78 - Step 6: Final answer
x = 488,670,796.24
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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.