Finding the Fourth Proportional to 19,959,491.40, 29,939,237.10 and 7,178,335.35
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Solution
The fourth proportional to 19,959,491.40, 29,939,237.10 and 7,178,335.35 is: 10,767,503.03
Step by Step Solution
- Step 1: Write the proportion equation
19,959,491.40 : 29,939,237.10 = 7,178,335.35 : x - Step 2: Convert to fraction form
19,959,491.40/29,939,237.10 = 7,178,335.35/x - Step 3: Cross multiply
19,959,491.40x = 29,939,237.10 × 7,178,335.35 - Step 4: Simplify right side
19,959,491.40x = 214,913,884,026,961.50 - Step 5: Solve for x
x = 214,913,884,026,961.50/19,959,491.40 - Step 6: Final answer
x = 10,767,503.03
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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.