Finding the Fourth Proportional to 2,930,014,492.80, 4,395,021,739.20 and 991,317,724.80
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Solution
The fourth proportional to 2,930,014,492.80, 4,395,021,739.20 and 991,317,724.80 is: 1,486,976,587.20
Step by Step Solution
- Step 1: Write the proportion equation
2,930,014,492.80 : 4,395,021,739.20 = 991,317,724.80 : x - Step 2: Convert to fraction form
2,930,014,492.80/4,395,021,739.20 = 991,317,724.80/x - Step 3: Cross multiply
2,930,014,492.80x = 4,395,021,739.20 × 991,317,724.80 - Step 4: Simplify right side
2,930,014,492.80x = 4,356,862,950,950,282,752 - Step 5: Solve for x
x = 4,356,862,950,950,282,752/2,930,014,492.80 - Step 6: Final answer
x = 1,486,976,587.20
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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.