Finding the Fourth Proportional to 623,184,406.99, 859,919,557.84 and 358,952,335.45
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Solution
The fourth proportional to 623,184,406.99, 859,919,557.84 and 358,952,335.45 is: 495,311,067.03
Step by Step Solution
- Step 1: Write the proportion equation
623,184,406.99 : 859,919,557.84 = 358,952,335.45 : x - Step 2: Convert to fraction form
623,184,406.99/859,919,557.84 = 358,952,335.45/x - Step 3: Cross multiply
623,184,406.99x = 859,919,557.84 × 358,952,335.45 - Step 4: Simplify right side
623,184,406.99x = 308,670,133,582,752,192 - Step 5: Solve for x
x = 308,670,133,582,752,192/623,184,406.99 - Step 6: Final answer
x = 495,311,067.03
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1.5x scale
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.