Finding the Fourth Proportional to 949,432,214.87, 1,310,199,115.19 and 526,044,331.76
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Solution
The fourth proportional to 949,432,214.87, 1,310,199,115.19 and 526,044,331.76 is: 725,931,569.65
Step by Step Solution
- Step 1: Write the proportion equation
949,432,214.87 : 1,310,199,115.19 = 526,044,331.76 : x - Step 2: Convert to fraction form
949,432,214.87/1,310,199,115.19 = 526,044,331.76/x - Step 3: Cross multiply
949,432,214.87x = 1,310,199,115.19 × 526,044,331.76 - Step 4: Simplify right side
949,432,214.87x = 689,222,818,013,485,568 - Step 5: Solve for x
x = 689,222,818,013,485,568/949,432,214.87 - Step 6: Final answer
x = 725,931,569.65
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.