Finding the Fourth Proportional to 207,679,483.41, 286,685,932.68 and 129,401,712.24
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Solution
The fourth proportional to 207,679,483.41, 286,685,932.68 and 129,401,712.24 is: 178,629,347.27
Step by Step Solution
- Step 1: Write the proportion equation
207,679,483.41 : 286,685,932.68 = 129,401,712.24 : x - Step 2: Convert to fraction form
207,679,483.41/286,685,932.68 = 129,401,712.24/x - Step 3: Cross multiply
207,679,483.41x = 286,685,932.68 × 129,401,712.24 - Step 4: Simplify right side
207,679,483.41x = 37,097,650,563,913,368 - Step 5: Solve for x
x = 37,097,650,563,913,368/207,679,483.41 - Step 6: Final answer
x = 178,629,347.27
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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.