Finding the Fourth Proportional to 1,089,936,791.24, 1,506,080,271.84 and 776,126,195.24
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Solution
The fourth proportional to 1,089,936,791.24, 1,506,080,271.84 and 776,126,195.24 is: 1,072,455,174.01
Step by Step Solution
- Step 1: Write the proportion equation
1,089,936,791.24 : 1,506,080,271.84 = 776,126,195.24 : x - Step 2: Convert to fraction form
1,089,936,791.24/1,506,080,271.84 = 776,126,195.24/x - Step 3: Cross multiply
1,089,936,791.24x = 1,506,080,271.84 × 776,126,195.24 - Step 4: Simplify right side
1,089,936,791.24x = 1,168,908,351,109,203,968 - Step 5: Solve for x
x = 1,168,908,351,109,203,968/1,089,936,791.24 - Step 6: Final answer
x = 1,072,455,174.01
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1.5x scale
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.