Finding the Fourth Proportional to 77,212,681.05, 115,818,923.76 and 19,704,953.49
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Solution
The fourth proportional to 77,212,681.05, 115,818,923.76 and 19,704,953.49 is: 29,557,405.27
Step by Step Solution
- Step 1: Write the proportion equation
77,212,681.05 : 115,818,923.76 = 19,704,953.49 : x - Step 2: Convert to fraction form
77,212,681.05/115,818,923.76 = 19,704,953.49/x - Step 3: Cross multiply
77,212,681.05x = 115,818,923.76 × 19,704,953.49 - Step 4: Simplify right side
77,212,681.05x = 2,282,206,505,952,656 - Step 5: Solve for x
x = 2,282,206,505,952,656/77,212,681.05 - Step 6: Final answer
x = 29,557,405.27
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.