Finding the Fourth Proportional to 19,877,995.20, 29,801,246.40 and 10,902,547.20
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Solution
The fourth proportional to 19,877,995.20, 29,801,246.40 and 10,902,547.20 is: 16,345,184.32
Step by Step Solution
- Step 1: Write the proportion equation
19,877,995.20 : 29,801,246.40 = 10,902,547.20 : x - Step 2: Convert to fraction form
19,877,995.20/29,801,246.40 = 10,902,547.20/x - Step 3: Cross multiply
19,877,995.20x = 29,801,246.40 × 10,902,547.20 - Step 4: Simplify right side
19,877,995.20x = 324,909,495,494,830.06 - Step 5: Solve for x
x = 324,909,495,494,830.06/19,877,995.20 - Step 6: Final answer
x = 16,345,184.32
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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.