Finding the Fourth Proportional to 83,031,664.20, 124,547,496.30 and 39,890,464.80
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Solution
The fourth proportional to 83,031,664.20, 124,547,496.30 and 39,890,464.80 is: 59,835,697.20
Step by Step Solution
- Step 1: Write the proportion equation
83,031,664.20 : 124,547,496.30 = 39,890,464.80 : x - Step 2: Convert to fraction form
83,031,664.20/124,547,496.30 = 39,890,464.80/x - Step 3: Cross multiply
83,031,664.20x = 124,547,496.30 × 39,890,464.80 - Step 4: Simplify right side
83,031,664.20x = 4,968,257,517,083,280 - Step 5: Solve for x
x = 4,968,257,517,083,280/83,031,664.20 - Step 6: Final answer
x = 59,835,697.20
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.