Finding the Fourth Proportional to 889,743,422.60, 1,334,615,133.90 and 829,277,246.60
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Solution
The fourth proportional to 889,743,422.60, 1,334,615,133.90 and 829,277,246.60 is: 1,243,915,869.90
Step by Step Solution
- Step 1: Write the proportion equation
889,743,422.60 : 1,334,615,133.90 = 829,277,246.60 : x - Step 2: Convert to fraction form
889,743,422.60/1,334,615,133.90 = 829,277,246.60/x - Step 3: Cross multiply
889,743,422.60x = 1,334,615,133.90 × 829,277,246.60 - Step 4: Simplify right side
889,743,422.60x = 1,106,765,963,511,282,432 - Step 5: Solve for x
x = 1,106,765,963,511,282,432/889,743,422.60 - Step 6: Final answer
x = 1,243,915,869.90
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Double scale
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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.