Finding the Fourth Proportional to 291,490,217.10, 437,257,930.05 and 97,402,326.30
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Solution
The fourth proportional to 291,490,217.10, 437,257,930.05 and 97,402,326.30 is: 146,111,042.78
Step by Step Solution
- Step 1: Write the proportion equation
291,490,217.10 : 437,257,930.05 = 97,402,326.30 : x - Step 2: Convert to fraction form
291,490,217.10/437,257,930.05 = 97,402,326.30/x - Step 3: Cross multiply
291,490,217.10x = 437,257,930.05 × 97,402,326.30 - Step 4: Simplify right side
291,490,217.10x = 42,589,939,579,992,672 - Step 5: Solve for x
x = 42,589,939,579,992,672/291,490,217.10 - Step 6: Final answer
x = 146,111,042.78
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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.