Finding the Fourth Proportional to 1,967,630,865.21, 2,951,446,298.02 and 657,532,917.70
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Solution
The fourth proportional to 1,967,630,865.21, 2,951,446,298.02 and 657,532,917.70 is: 986,299,376.61
Step by Step Solution
- Step 1: Write the proportion equation
1,967,630,865.21 : 2,951,446,298.02 = 657,532,917.70 : x - Step 2: Convert to fraction form
1,967,630,865.21/2,951,446,298.02 = 657,532,917.70/x - Step 3: Cross multiply
1,967,630,865.21x = 2,951,446,298.02 × 657,532,917.70 - Step 4: Simplify right side
1,967,630,865.21x = 1,940,673,095,762,931,712 - Step 5: Solve for x
x = 1,940,673,095,762,931,712/1,967,630,865.21 - Step 6: Final answer
x = 986,299,376.61
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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.