Finding the Fourth Proportional to 354,865,122.80, 531,501,421.80 and 291,164,130.80
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Solution
The fourth proportional to 354,865,122.80, 531,501,421.80 and 291,164,130.80 is: 436,092,868.96
Step by Step Solution
- Step 1: Write the proportion equation
354,865,122.80 : 531,501,421.80 = 291,164,130.80 : x - Step 2: Convert to fraction form
354,865,122.80/531,501,421.80 = 291,164,130.80/x - Step 3: Cross multiply
354,865,122.80x = 531,501,421.80 × 291,164,130.80 - Step 4: Simplify right side
354,865,122.80x = 154,754,149,497,361,184 - Step 5: Solve for x
x = 154,754,149,497,361,184/354,865,122.80 - Step 6: Final answer
x = 436,092,868.96
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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.