Finding the Fourth Proportional to 453,480,801.20, 680,221,201.80 and 194,651,975.60
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Solution
The fourth proportional to 453,480,801.20, 680,221,201.80 and 194,651,975.60 is: 291,977,963.40
Step by Step Solution
- Step 1: Write the proportion equation
453,480,801.20 : 680,221,201.80 = 194,651,975.60 : x - Step 2: Convert to fraction form
453,480,801.20/680,221,201.80 = 194,651,975.60/x - Step 3: Cross multiply
453,480,801.20x = 680,221,201.80 × 194,651,975.60 - Step 4: Simplify right side
453,480,801.20x = 132,406,400,775,376,256 - Step 5: Solve for x
x = 132,406,400,775,376,256/453,480,801.20 - Step 6: Final answer
x = 291,977,963.40
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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.