Finding the Fourth Proportional to 90,371,239.08, 124,714,940.57 and 51,211,713.75
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Solution
The fourth proportional to 90,371,239.08, 124,714,940.57 and 51,211,713.75 is: 70,673,655.72
Step by Step Solution
- Step 1: Write the proportion equation
90,371,239.08 : 124,714,940.57 = 51,211,713.75 : x - Step 2: Convert to fraction form
90,371,239.08/124,714,940.57 = 51,211,713.75/x - Step 3: Cross multiply
90,371,239.08x = 124,714,940.57 × 51,211,713.75 - Step 4: Simplify right side
90,371,239.08x = 6,386,865,837,628,073 - Step 5: Solve for x
x = 6,386,865,837,628,073/90,371,239.08 - Step 6: Final answer
x = 70,673,655.72
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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.