Finding the Fourth Proportional to 1,495,585,425.80, 2,243,378,138.70 and 1,240,781,457.80
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Solution
The fourth proportional to 1,495,585,425.80, 2,243,378,138.70 and 1,240,781,457.80 is: 1,861,172,186.70
Step by Step Solution
- Step 1: Write the proportion equation
1,495,585,425.80 : 2,243,378,138.70 = 1,240,781,457.80 : x - Step 2: Convert to fraction form
1,495,585,425.80/2,243,378,138.70 = 1,240,781,457.80/x - Step 3: Cross multiply
1,495,585,425.80x = 2,243,378,138.70 × 1,240,781,457.80 - Step 4: Simplify right side
1,495,585,425.80x = 2,783,541,997,332,836,352 - Step 5: Solve for x
x = 2,783,541,997,332,836,352/1,495,585,425.80 - Step 6: Final answer
x = 1,861,172,186.70
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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.