Finding the Fourth Proportional to 771,782,878.08, 1,157,791,890.24 and 480,414,291.84
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Solution
The fourth proportional to 771,782,878.08, 1,157,791,890.24 and 480,414,291.84 is: 720,694,623.90
Step by Step Solution
- Step 1: Write the proportion equation
771,782,878.08 : 1,157,791,890.24 = 480,414,291.84 : x - Step 2: Convert to fraction form
771,782,878.08/1,157,791,890.24 = 480,414,291.84/x - Step 3: Cross multiply
771,782,878.08x = 1,157,791,890.24 × 480,414,291.84 - Step 4: Simplify right side
771,782,878.08x = 556,219,771,047,744,576 - Step 5: Solve for x
x = 556,219,771,047,744,576/771,782,878.08 - Step 6: Final answer
x = 720,694,623.90
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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.