Finding the Fourth Proportional to 48,898,490.79, 67,480,317.50 and 30,574,398.63
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Solution
The fourth proportional to 48,898,490.79, 67,480,317.50 and 30,574,398.63 is: 42,192,920.34
Step by Step Solution
- Step 1: Write the proportion equation
48,898,490.79 : 67,480,317.50 = 30,574,398.63 : x - Step 2: Convert to fraction form
48,898,490.79/67,480,317.50 = 30,574,398.63/x - Step 3: Cross multiply
48,898,490.79x = 67,480,317.50 × 30,574,398.63 - Step 4: Simplify right side
48,898,490.79x = 2,063,170,126,771,093 - Step 5: Solve for x
x = 2,063,170,126,771,093/48,898,490.79 - Step 6: Final answer
x = 42,192,920.34
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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.