Finding the Fourth Proportional to 1,192,712,479.44, 1,645,923,567.96 and 697,759,037.52
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Solution
The fourth proportional to 1,192,712,479.44, 1,645,923,567.96 and 697,759,037.52 is: 962,895,974.02
Step by Step Solution
- Step 1: Write the proportion equation
1,192,712,479.44 : 1,645,923,567.96 = 697,759,037.52 : x - Step 2: Convert to fraction form
1,192,712,479.44/1,645,923,567.96 = 697,759,037.52/x - Step 3: Cross multiply
1,192,712,479.44x = 1,645,923,567.96 × 697,759,037.52 - Step 4: Simplify right side
1,192,712,479.44x = 1,148,458,044,611,253,888 - Step 5: Solve for x
x = 1,148,458,044,611,253,888/1,192,712,479.44 - Step 6: Final answer
x = 962,895,974.02
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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.