Finding the Fourth Proportional to 239,851,511.16, 330,995,196.10 and 129,843,224.12
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Solution
The fourth proportional to 239,851,511.16, 330,995,196.10 and 129,843,224.12 is: 179,183,709.21
Step by Step Solution
- Step 1: Write the proportion equation
239,851,511.16 : 330,995,196.10 = 129,843,224.12 : x - Step 2: Convert to fraction form
239,851,511.16/330,995,196.10 = 129,843,224.12/x - Step 3: Cross multiply
239,851,511.16x = 330,995,196.10 × 129,843,224.12 - Step 4: Simplify right side
239,851,511.16x = 42,977,483,429,855,656 - Step 5: Solve for x
x = 42,977,483,429,855,656/239,851,511.16 - Step 6: Final answer
x = 179,183,709.21
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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.