Finding the Fourth Proportional to 276,600,681.70, 381,730,699.97 and 157,528,308.67
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Solution
The fourth proportional to 276,600,681.70, 381,730,699.97 and 157,528,308.67 is: 217,401,458.17
Step by Step Solution
- Step 1: Write the proportion equation
276,600,681.70 : 381,730,699.97 = 157,528,308.67 : x - Step 2: Convert to fraction form
276,600,681.70/381,730,699.97 = 157,528,308.67/x - Step 3: Cross multiply
276,600,681.70x = 381,730,699.97 × 157,528,308.67 - Step 4: Simplify right side
276,600,681.70x = 60,133,391,533,689,320 - Step 5: Solve for x
x = 60,133,391,533,689,320/276,600,681.70 - Step 6: Final answer
x = 217,401,458.17
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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.