Finding the Fourth Proportional to 157,547,427.27, 217,415,750.49 and 86,983,173.98
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Solution
The fourth proportional to 157,547,427.27, 217,415,750.49 and 86,983,173.98 is: 120,036,946.20
Step by Step Solution
- Step 1: Write the proportion equation
157,547,427.27 : 217,415,750.49 = 86,983,173.98 : x - Step 2: Convert to fraction form
157,547,427.27/217,415,750.49 = 86,983,173.98/x - Step 3: Cross multiply
157,547,427.27x = 217,415,750.49 × 86,983,173.98 - Step 4: Simplify right side
157,547,427.27x = 18,911,512,050,863,940 - Step 5: Solve for x
x = 18,911,512,050,863,940/157,547,427.27 - Step 6: Final answer
x = 120,036,946.20
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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.