Finding the Fourth Proportional to 472,392,493.60, 708,588,740.40 and 144,865,405.30
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Solution
The fourth proportional to 472,392,493.60, 708,588,740.40 and 144,865,405.30 is: 217,298,107.95
Step by Step Solution
- Step 1: Write the proportion equation
472,392,493.60 : 708,588,740.40 = 144,865,405.30 : x - Step 2: Convert to fraction form
472,392,493.60/708,588,740.40 = 144,865,405.30/x - Step 3: Cross multiply
472,392,493.60x = 708,588,740.40 × 144,865,405.30 - Step 4: Simplify right side
472,392,493.60x = 102,649,995,069,062,496 - Step 5: Solve for x
x = 102,649,995,069,062,496/472,392,493.60 - Step 6: Final answer
x = 217,298,107.95
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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.