Finding the Fourth Proportional to 299,939,209.65, 413,749,381.17 and 174,477,289.05
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Solution
The fourth proportional to 299,939,209.65, 413,749,381.17 and 174,477,289.05 is: 240,681,671.65
Step by Step Solution
- Step 1: Write the proportion equation
299,939,209.65 : 413,749,381.17 = 174,477,289.05 : x - Step 2: Convert to fraction form
299,939,209.65/413,749,381.17 = 174,477,289.05/x - Step 3: Cross multiply
299,939,209.65x = 413,749,381.17 × 174,477,289.05 - Step 4: Simplify right side
299,939,209.65x = 72,189,870,372,656,720 - Step 5: Solve for x
x = 72,189,870,372,656,720/299,939,209.65 - Step 6: Final answer
x = 240,681,671.65
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.