Finding the Fourth Proportional to 1,480,331,005.12, 2,042,856,800.64 and 820,281,282.88
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Solution
The fourth proportional to 1,480,331,005.12, 2,042,856,800.64 and 820,281,282.88 is: 1,131,988,177.90
Step by Step Solution
- Step 1: Write the proportion equation
1,480,331,005.12 : 2,042,856,800.64 = 820,281,282.88 : x - Step 2: Convert to fraction form
1,480,331,005.12/2,042,856,800.64 = 820,281,282.88/x - Step 3: Cross multiply
1,480,331,005.12x = 2,042,856,800.64 × 820,281,282.88 - Step 4: Simplify right side
1,480,331,005.12x = 1,675,717,197,169,111,808 - Step 5: Solve for x
x = 1,675,717,197,169,111,808/1,480,331,005.12 - Step 6: Final answer
x = 1,131,988,177.90
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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.