Finding the Fourth Proportional to 1,076,326,801.20, 1,614,490,201.80 and 585,275,317.20
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Solution
The fourth proportional to 1,076,326,801.20, 1,614,490,201.80 and 585,275,317.20 is: 877,912,975.80
Step by Step Solution
- Step 1: Write the proportion equation
1,076,326,801.20 : 1,614,490,201.80 = 585,275,317.20 : x - Step 2: Convert to fraction form
1,076,326,801.20/1,614,490,201.80 = 585,275,317.20/x - Step 3: Cross multiply
1,076,326,801.20x = 1,614,490,201.80 × 585,275,317.20 - Step 4: Simplify right side
1,076,326,801.20x = 944,921,264,974,787,072 - Step 5: Solve for x
x = 944,921,264,974,787,072/1,076,326,801.20 - Step 6: Final answer
x = 877,912,975.80
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Double scale
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Similar ratio
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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.