Finding the Fourth Proportional to 786,995,110.80, 1,180,492,666.20 and 775,515,985.20
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Solution
The fourth proportional to 786,995,110.80, 1,180,492,666.20 and 775,515,985.20 is: 1,163,273,977.80
Step by Step Solution
- Step 1: Write the proportion equation
786,995,110.80 : 1,180,492,666.20 = 775,515,985.20 : x - Step 2: Convert to fraction form
786,995,110.80/1,180,492,666.20 = 775,515,985.20/x - Step 3: Cross multiply
786,995,110.80x = 1,180,492,666.20 × 775,515,985.20 - Step 4: Simplify right side
786,995,110.80x = 915,490,933,049,467,776 - Step 5: Solve for x
x = 915,490,933,049,467,776/786,995,110.80 - Step 6: Final answer
x = 1,163,273,977.80
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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.