Finding the Fourth Proportional to 992,409,855.30, 1,488,614,782.95 and 409,950,519.30
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Solution
The fourth proportional to 992,409,855.30, 1,488,614,782.95 and 409,950,519.30 is: 614,925,778.95
Step by Step Solution
- Step 1: Write the proportion equation
992,409,855.30 : 1,488,614,782.95 = 409,950,519.30 : x - Step 2: Convert to fraction form
992,409,855.30/1,488,614,782.95 = 409,950,519.30/x - Step 3: Cross multiply
992,409,855.30x = 1,488,614,782.95 × 409,950,519.30 - Step 4: Simplify right side
992,409,855.30x = 610,258,403,308,009,344 - Step 5: Solve for x
x = 610,258,403,308,009,344/992,409,855.30 - Step 6: Final answer
x = 614,925,778.95
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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.