Finding the Fourth Proportional to 472,392,073.80, 708,588,110.70 and 386,298,631.80
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Solution
The fourth proportional to 472,392,073.80, 708,588,110.70 and 386,298,631.80 is: 579,447,947.70
Step by Step Solution
- Step 1: Write the proportion equation
472,392,073.80 : 708,588,110.70 = 386,298,631.80 : x - Step 2: Convert to fraction form
472,392,073.80/708,588,110.70 = 386,298,631.80/x - Step 3: Cross multiply
472,392,073.80x = 708,588,110.70 × 386,298,631.80 - Step 4: Simplify right side
472,392,073.80x = 273,726,617,673,156,960 - Step 5: Solve for x
x = 273,726,617,673,156,960/472,392,073.80 - Step 6: Final answer
x = 579,447,947.70
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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.