Finding the Fourth Proportional to 90,371,226.12, 124,714,922.68 and 51,211,700.79
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Solution
The fourth proportional to 90,371,226.12, 124,714,922.68 and 51,211,700.79 is: 70,673,637.82
Step by Step Solution
- Step 1: Write the proportion equation
90,371,226.12 : 124,714,922.68 = 51,211,700.79 : x - Step 2: Convert to fraction form
90,371,226.12/124,714,922.68 = 51,211,700.79/x - Step 3: Cross multiply
90,371,226.12x = 124,714,922.68 × 51,211,700.79 - Step 4: Simplify right side
90,371,226.12x = 6,386,863,303,932,479 - Step 5: Solve for x
x = 6,386,863,303,932,479/90,371,226.12 - Step 6: Final answer
x = 70,673,637.82
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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.