Finding the Fourth Proportional to 808,514,823.60, 1,212,772,235.40 and 747,292,820.40
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Solution
The fourth proportional to 808,514,823.60, 1,212,772,235.40 and 747,292,820.40 is: 1,120,939,230.60
Step by Step Solution
- Step 1: Write the proportion equation
808,514,823.60 : 1,212,772,235.40 = 747,292,820.40 : x - Step 2: Convert to fraction form
808,514,823.60/1,212,772,235.40 = 747,292,820.40/x - Step 3: Cross multiply
808,514,823.60x = 1,212,772,235.40 × 747,292,820.40 - Step 4: Simplify right side
808,514,823.60x = 906,295,984,294,878,720 - Step 5: Solve for x
x = 906,295,984,294,878,720/808,514,823.60 - Step 6: Final answer
x = 1,120,939,230.60
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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.