Finding the Fourth Proportional to 15,278,312.04, 21,084,246.45 and 8,402,908.92
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Solution
The fourth proportional to 15,278,312.04, 21,084,246.45 and 8,402,908.92 is: 11,596,111.02
Step by Step Solution
- Step 1: Write the proportion equation
15,278,312.04 : 21,084,246.45 = 8,402,908.92 : x - Step 2: Convert to fraction form
15,278,312.04/21,084,246.45 = 8,402,908.92/x - Step 3: Cross multiply
15,278,312.04x = 21,084,246.45 × 8,402,908.92 - Step 4: Simplify right side
15,278,312.04x = 177,169,002,566,183.31 - Step 5: Solve for x
x = 177,169,002,566,183.31/15,278,312.04 - Step 6: Final answer
x = 11,596,111.02
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1.5x scale
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.