Finding the Fourth Proportional to 128,497,277.39, 177,328,303.25 and 69,759,895.73
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Solution
The fourth proportional to 128,497,277.39, 177,328,303.25 and 69,759,895.73 is: 96,269,774.70
Step by Step Solution
- Step 1: Write the proportion equation
128,497,277.39 : 177,328,303.25 = 69,759,895.73 : x - Step 2: Convert to fraction form
128,497,277.39/177,328,303.25 = 69,759,895.73/x - Step 3: Cross multiply
128,497,277.39x = 177,328,303.25 × 69,759,895.73 - Step 4: Simplify right side
128,497,277.39x = 12,370,403,943,462,378 - Step 5: Solve for x
x = 12,370,403,943,462,378/128,497,277.39 - Step 6: Final answer
x = 96,269,774.70
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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.