Finding the Fourth Proportional to 128,961,908.53, 193,263,895.14 and 58,760,574.55
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Solution
The fourth proportional to 128,961,908.53, 193,263,895.14 and 58,760,574.55 is: 88,059,316.49
Step by Step Solution
- Step 1: Write the proportion equation
128,961,908.53 : 193,263,895.14 = 58,760,574.55 : x - Step 2: Convert to fraction form
128,961,908.53/193,263,895.14 = 58,760,574.55/x - Step 3: Cross multiply
128,961,908.53x = 193,263,895.14 × 58,760,574.55 - Step 4: Simplify right side
128,961,908.53x = 11,356,297,518,176,126 - Step 5: Solve for x
x = 11,356,297,518,176,126/128,961,908.53 - Step 6: Final answer
x = 88,059,316.49
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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.