Finding the Fourth Proportional to 77,212,681.30, 115,818,924.14 and 19,704,953.76
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Solution
The fourth proportional to 77,212,681.30, 115,818,924.14 and 19,704,953.76 is: 29,557,405.68
Step by Step Solution
- Step 1: Write the proportion equation
77,212,681.30 : 115,818,924.14 = 19,704,953.76 : x - Step 2: Convert to fraction form
77,212,681.30/115,818,924.14 = 19,704,953.76/x - Step 3: Cross multiply
77,212,681.30x = 115,818,924.14 × 19,704,953.76 - Step 4: Simplify right side
77,212,681.30x = 2,282,206,544,711,648 - Step 5: Solve for x
x = 2,282,206,544,711,648/77,212,681.30 - Step 6: Final answer
x = 29,557,405.68
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.