Finding the Fourth Proportional to 497,901,358.24, 687,413,964.68 and 316,950,438.81
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Solution
The fourth proportional to 497,901,358.24, 687,413,964.68 and 316,950,438.81 is: 437,589,000.59
Step by Step Solution
- Step 1: Write the proportion equation
497,901,358.24 : 687,413,964.68 = 316,950,438.81 : x - Step 2: Convert to fraction form
497,901,358.24/687,413,964.68 = 316,950,438.81/x - Step 3: Cross multiply
497,901,358.24x = 687,413,964.68 × 316,950,438.81 - Step 4: Simplify right side
497,901,358.24x = 217,876,157,744,426,016 - Step 5: Solve for x
x = 217,876,157,744,426,016/497,901,358.24 - Step 6: Final answer
x = 437,589,000.59
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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.