Finding the Fourth Proportional to 1,618,157,917.30, 2,427,236,875.95 and 1,445,829,315.70
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Solution
The fourth proportional to 1,618,157,917.30, 2,427,236,875.95 and 1,445,829,315.70 is: 2,168,743,973.55
Step by Step Solution
- Step 1: Write the proportion equation
1,618,157,917.30 : 2,427,236,875.95 = 1,445,829,315.70 : x - Step 2: Convert to fraction form
1,618,157,917.30/2,427,236,875.95 = 1,445,829,315.70/x - Step 3: Cross multiply
1,618,157,917.30x = 2,427,236,875.95 × 1,445,829,315.70 - Step 4: Simplify right side
1,618,157,917.30x = 3,509,370,231,396,594,176 - Step 5: Solve for x
x = 3,509,370,231,396,594,176/1,618,157,917.30 - Step 6: Final answer
x = 2,168,743,973.55
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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.