Finding the Fourth Proportional to 79,430,393.54, 119,148,278.20 and 21,138,128.96
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Solution
The fourth proportional to 79,430,393.54, 119,148,278.20 and 21,138,128.96 is: 31,707,908.74
Step by Step Solution
- Step 1: Write the proportion equation
79,430,393.54 : 119,148,278.20 = 21,138,128.96 : x - Step 2: Convert to fraction form
79,430,393.54/119,148,278.20 = 21,138,128.96/x - Step 3: Cross multiply
79,430,393.54x = 119,148,278.20 × 21,138,128.96 - Step 4: Simplify right side
79,430,393.54x = 2,518,571,669,304,970 - Step 5: Solve for x
x = 2,518,571,669,304,970/79,430,393.54 - Step 6: Final answer
x = 31,707,908.74
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.