Finding the Fourth Proportional to 278,271,567.80, 417,407,351.70 and 96,518,745.80
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Solution
The fourth proportional to 278,271,567.80, 417,407,351.70 and 96,518,745.80 is: 144,778,118.70
Step by Step Solution
- Step 1: Write the proportion equation
278,271,567.80 : 417,407,351.70 = 96,518,745.80 : x - Step 2: Convert to fraction form
278,271,567.80/417,407,351.70 = 96,518,745.80/x - Step 3: Cross multiply
278,271,567.80x = 417,407,351.70 × 96,518,745.80 - Step 4: Simplify right side
278,271,567.80x = 40,287,634,073,783,496 - Step 5: Solve for x
x = 40,287,634,073,783,496/278,271,567.80 - Step 6: Final answer
x = 144,778,118.70
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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.