Finding the Fourth Proportional to 487,228,675.99, 730,885,981.25 and 137,477,811.28
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Solution
The fourth proportional to 487,228,675.99, 730,885,981.25 and 137,477,811.28 is: 206,228,840.68
Step by Step Solution
- Step 1: Write the proportion equation
487,228,675.99 : 730,885,981.25 = 137,477,811.28 : x - Step 2: Convert to fraction form
487,228,675.99/730,885,981.25 = 137,477,811.28/x - Step 3: Cross multiply
487,228,675.99x = 730,885,981.25 × 137,477,811.28 - Step 4: Simplify right side
487,228,675.99x = 100,480,604,997,485,120 - Step 5: Solve for x
x = 100,480,604,997,485,120/487,228,675.99 - Step 6: Final answer
x = 206,228,840.68
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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.