Finding the Fourth Proportional to 314,930,643.30, 472,395,964.95 and 277,942,349.70
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Solution
The fourth proportional to 314,930,643.30, 472,395,964.95 and 277,942,349.70 is: 416,913,524.55
Step by Step Solution
- Step 1: Write the proportion equation
314,930,643.30 : 472,395,964.95 = 277,942,349.70 : x - Step 2: Convert to fraction form
314,930,643.30/472,395,964.95 = 277,942,349.70/x - Step 3: Cross multiply
314,930,643.30x = 472,395,964.95 × 277,942,349.70 - Step 4: Simplify right side
314,930,643.30x = 131,298,844,487,001,840 - Step 5: Solve for x
x = 131,298,844,487,001,840/314,930,643.30 - Step 6: Final answer
x = 416,913,524.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.