Finding the Fourth Proportional to 2,935,688,743.80, 4,403,533,115.70 and 996,991,975.80
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Solution
The fourth proportional to 2,935,688,743.80, 4,403,533,115.70 and 996,991,975.80 is: 1,495,487,963.70
Step by Step Solution
- Step 1: Write the proportion equation
2,935,688,743.80 : 4,403,533,115.70 = 996,991,975.80 : x - Step 2: Convert to fraction form
2,935,688,743.80/4,403,533,115.70 = 996,991,975.80/x - Step 3: Cross multiply
2,935,688,743.80x = 4,403,533,115.70 × 996,991,975.80 - Step 4: Simplify right side
2,935,688,743.80x = 4,390,287,181,522,472,448 - Step 5: Solve for x
x = 4,390,287,181,522,472,448/2,935,688,743.80 - Step 6: Final answer
x = 1,495,487,963.70
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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.