Finding the Fourth Proportional to 1,455,766,785.06, 2,009,048,192.69 and 803,236,758.87
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Solution
The fourth proportional to 1,455,766,785.06, 2,009,048,192.69 and 803,236,758.87 is: 1,108,516,401.99
Step by Step Solution
- Step 1: Write the proportion equation
1,455,766,785.06 : 2,009,048,192.69 = 803,236,758.87 : x - Step 2: Convert to fraction form
1,455,766,785.06/2,009,048,192.69 = 803,236,758.87/x - Step 3: Cross multiply
1,455,766,785.06x = 2,009,048,192.69 × 803,236,758.87 - Step 4: Simplify right side
1,455,766,785.06x = 1,613,741,358,709,946,880 - Step 5: Solve for x
x = 1,613,741,358,709,946,880/1,455,766,785.06 - Step 6: Final answer
x = 1,108,516,401.99
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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.