Finding the Fourth Proportional to 877,855,809.60, 1,315,440,021.60 and 829,482,868.80
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Solution
The fourth proportional to 877,855,809.60, 1,315,440,021.60 and 829,482,868.80 is: 1,242,954,652.60
Step by Step Solution
- Step 1: Write the proportion equation
877,855,809.60 : 1,315,440,021.60 = 829,482,868.80 : x - Step 2: Convert to fraction form
877,855,809.60/1,315,440,021.60 = 829,482,868.80/x - Step 3: Cross multiply
877,855,809.60x = 1,315,440,021.60 × 829,482,868.80 - Step 4: Simplify right side
877,855,809.60x = 1,091,134,962,851,101,824 - Step 5: Solve for x
x = 1,091,134,962,851,101,824/877,855,809.60 - Step 6: Final answer
x = 1,242,954,652.60
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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.