Finding the Fourth Proportional to 28,612,419.08, 39,484,590.90 and 15,735,363.08
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Solution
The fourth proportional to 28,612,419.08, 39,484,590.90 and 15,735,363.08 is: 21,714,499.99
Step by Step Solution
- Step 1: Write the proportion equation
28,612,419.08 : 39,484,590.90 = 15,735,363.08 : x - Step 2: Convert to fraction form
28,612,419.08/39,484,590.90 = 15,735,363.08/x - Step 3: Cross multiply
28,612,419.08x = 39,484,590.90 × 15,735,363.08 - Step 4: Simplify right side
28,612,419.08x = 621,304,373,876,764 - Step 5: Solve for x
x = 621,304,373,876,764/28,612,419.08 - Step 6: Final answer
x = 21,714,499.99
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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.