Finding the Fourth Proportional to 1,387,750,599.20, 2,077,536,014.40 and 1,215,563,715.20
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Solution
The fourth proportional to 1,387,750,599.20, 2,077,536,014.40 and 1,215,563,715.20 is: 1,819,763,145.90
Step by Step Solution
- Step 1: Write the proportion equation
1,387,750,599.20 : 2,077,536,014.40 = 1,215,563,715.20 : x - Step 2: Convert to fraction form
1,387,750,599.20/2,077,536,014.40 = 1,215,563,715.20/x - Step 3: Cross multiply
1,387,750,599.20x = 2,077,536,014.40 × 1,215,563,715.20 - Step 4: Simplify right side
1,387,750,599.20x = 2,525,377,396,125,864,960 - Step 5: Solve for x
x = 2,525,377,396,125,864,960/1,387,750,599.20 - Step 6: Final answer
x = 1,819,763,145.90
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.