Finding the Fourth Proportional to 1,611,758,730.40, 2,417,638,095.60 and 521,352,023.20
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Solution
The fourth proportional to 1,611,758,730.40, 2,417,638,095.60 and 521,352,023.20 is: 782,028,034.80
Step by Step Solution
- Step 1: Write the proportion equation
1,611,758,730.40 : 2,417,638,095.60 = 521,352,023.20 : x - Step 2: Convert to fraction form
1,611,758,730.40/2,417,638,095.60 = 521,352,023.20/x - Step 3: Cross multiply
1,611,758,730.40x = 2,417,638,095.60 × 521,352,023.20 - Step 4: Simplify right side
1,611,758,730.40x = 1,260,440,512,506,455,040 - Step 5: Solve for x
x = 1,260,440,512,506,455,040/1,611,758,730.40 - Step 6: Final answer
x = 782,028,034.80
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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.