Finding the Fourth Proportional to 187,272,021.80, 280,908,032.70 and 157,038,933.80
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Solution
The fourth proportional to 187,272,021.80, 280,908,032.70 and 157,038,933.80 is: 235,558,400.70
Step by Step Solution
- Step 1: Write the proportion equation
187,272,021.80 : 280,908,032.70 = 157,038,933.80 : x - Step 2: Convert to fraction form
187,272,021.80/280,908,032.70 = 157,038,933.80/x - Step 3: Cross multiply
187,272,021.80x = 280,908,032.70 × 157,038,933.80 - Step 4: Simplify right side
187,272,021.80x = 44,113,497,951,063,536 - Step 5: Solve for x
x = 44,113,497,951,063,536/187,272,021.80 - Step 6: Final answer
x = 235,558,400.70
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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.