Finding the Fourth Proportional to 1,120,438,233.70, 1,680,951,283.35 and 430,368,000.10
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Solution
The fourth proportional to 1,120,438,233.70, 1,680,951,283.35 and 430,368,000.10 is: 645,664,901.75
Step by Step Solution
- Step 1: Write the proportion equation
1,120,438,233.70 : 1,680,951,283.35 = 430,368,000.10 : x - Step 2: Convert to fraction form
1,120,438,233.70/1,680,951,283.35 = 430,368,000.10/x - Step 3: Cross multiply
1,120,438,233.70x = 1,680,951,283.35 × 430,368,000.10 - Step 4: Simplify right side
1,120,438,233.70x = 723,427,642,080,867,968 - Step 5: Solve for x
x = 723,427,642,080,867,968/1,120,438,233.70 - Step 6: Final answer
x = 645,664,901.75
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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.