Finding the Fourth Proportional to 219,671,211.68, 330,021,331.20 and 207,261,867.52
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Solution
The fourth proportional to 219,671,211.68, 330,021,331.20 and 207,261,867.52 is: 311,378,249.81
Step by Step Solution
- Step 1: Write the proportion equation
219,671,211.68 : 330,021,331.20 = 207,261,867.52 : x - Step 2: Convert to fraction form
219,671,211.68/330,021,331.20 = 207,261,867.52/x - Step 3: Cross multiply
219,671,211.68x = 330,021,331.20 × 207,261,867.52 - Step 4: Simplify right side
219,671,211.68x = 68,400,837,425,948,440 - Step 5: Solve for x
x = 68,400,837,425,948,440/219,671,211.68 - Step 6: Final answer
x = 311,378,249.81
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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.