Finding the Fourth Proportional to 247,788,607.20, 371,682,910.80 and 207,477,823.20
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Solution
The fourth proportional to 247,788,607.20, 371,682,910.80 and 207,477,823.20 is: 311,216,734.80
Step by Step Solution
- Step 1: Write the proportion equation
247,788,607.20 : 371,682,910.80 = 207,477,823.20 : x - Step 2: Convert to fraction form
247,788,607.20/371,682,910.80 = 207,477,823.20/x - Step 3: Cross multiply
247,788,607.20x = 371,682,910.80 × 207,477,823.20 - Step 4: Simplify right side
247,788,607.20x = 77,115,961,253,423,776 - Step 5: Solve for x
x = 77,115,961,253,423,776/247,788,607.20 - Step 6: Final answer
x = 311,216,734.80
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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.