Finding the Fourth Proportional to 5,180,867,919.84, 7,771,846,199.76 and 1,687,545,746.40
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Solution
The fourth proportional to 5,180,867,919.84, 7,771,846,199.76 and 1,687,545,746.40 is: 2,531,495,919.02
Step by Step Solution
- Step 1: Write the proportion equation
5,180,867,919.84 : 7,771,846,199.76 = 1,687,545,746.40 : x - Step 2: Convert to fraction form
5,180,867,919.84/7,771,846,199.76 = 1,687,545,746.40/x - Step 3: Cross multiply
5,180,867,919.84x = 7,771,846,199.76 × 1,687,545,746.40 - Step 4: Simplify right side
5,180,867,919.84x = 13,115,345,996,079,992,832 - Step 5: Solve for x
x = 13,115,345,996,079,992,832/5,180,867,919.84 - Step 6: Final answer
x = 2,531,495,919.02
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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.