Finding the Fourth Proportional to 257,720,693.68, 355,658,837.96 and 140,250,975.04
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Solution
The fourth proportional to 257,720,693.68, 355,658,837.96 and 140,250,975.04 is: 193,548,675.09
Step by Step Solution
- Step 1: Write the proportion equation
257,720,693.68 : 355,658,837.96 = 140,250,975.04 : x - Step 2: Convert to fraction form
257,720,693.68/355,658,837.96 = 140,250,975.04/x - Step 3: Cross multiply
257,720,693.68x = 355,658,837.96 × 140,250,975.04 - Step 4: Simplify right side
257,720,693.68x = 49,881,498,805,483,360 - Step 5: Solve for x
x = 49,881,498,805,483,360/257,720,693.68 - Step 6: Final answer
x = 193,548,675.09
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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.