Finding the Fourth Proportional to 545,828,018.80, 818,742,028.20 and 486,873,497.20
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Solution
The fourth proportional to 545,828,018.80, 818,742,028.20 and 486,873,497.20 is: 730,310,245.80
Step by Step Solution
- Step 1: Write the proportion equation
545,828,018.80 : 818,742,028.20 = 486,873,497.20 : x - Step 2: Convert to fraction form
545,828,018.80/818,742,028.20 = 486,873,497.20/x - Step 3: Cross multiply
545,828,018.80x = 818,742,028.20 × 486,873,497.20 - Step 4: Simplify right side
545,828,018.80x = 398,623,794,574,355,008 - Step 5: Solve for x
x = 398,623,794,574,355,008/545,828,018.80 - Step 6: Final answer
x = 730,310,245.80
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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.