Finding the Fourth Proportional to 1,621,820,476,502.20, 2,238,114,473,899.60 and 880,227,323,808.88
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Solution
The fourth proportional to 1,621,820,476,502.20, 2,238,114,473,899.60 and 880,227,323,808.88 is: 1,214,714,909,745.99
Step by Step Solution
- Step 1: Write the proportion equation
1,621,820,476,502.20 : 2,238,114,473,899.60 = 880,227,323,808.88 : x - Step 2: Convert to fraction form
1,621,820,476,502.20/2,238,114,473,899.60 = 880,227,323,808.88/x - Step 3: Cross multiply
1,621,820,476,502.20x = 2,238,114,473,899.60 × 880,227,323,808.88 - Step 4: Simplify right side
1,621,820,476,502.20x = 1,970,049,513,738,564,335,042,560 - Step 5: Solve for x
x = 1,970,049,513,738,564,335,042,560/1,621,820,476,502.20 - Step 6: Final answer
x = 1,214,714,909,745.99
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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.