Finding the Fourth Proportional to 353,158,406.49, 487,354,733.33 and 194,385,134.64
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Solution
The fourth proportional to 353,158,406.49, 487,354,733.33 and 194,385,134.64 is: 268,249,356.99
Step by Step Solution
- Step 1: Write the proportion equation
353,158,406.49 : 487,354,733.33 = 194,385,134.64 : x - Step 2: Convert to fraction form
353,158,406.49/487,354,733.33 = 194,385,134.64/x - Step 3: Cross multiply
353,158,406.49x = 487,354,733.33 × 194,385,134.64 - Step 4: Simplify right side
353,158,406.49x = 94,734,515,454,821,408 - Step 5: Solve for x
x = 94,734,515,454,821,408/353,158,406.49 - Step 6: Final answer
x = 268,249,356.99
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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.