Finding the Fourth Proportional to 140,656,620.84, 194,103,567.65 and 77,932,490.06
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Solution
The fourth proportional to 140,656,620.84, 194,103,567.65 and 77,932,490.06 is: 107,545,412.83
Step by Step Solution
- Step 1: Write the proportion equation
140,656,620.84 : 194,103,567.65 = 77,932,490.06 : x - Step 2: Convert to fraction form
140,656,620.84/194,103,567.65 = 77,932,490.06/x - Step 3: Cross multiply
140,656,620.84x = 194,103,567.65 × 77,932,490.06 - Step 4: Simplify right side
140,656,620.84x = 15,126,974,355,133,984 - Step 5: Solve for x
x = 15,126,974,355,133,984/140,656,620.84 - Step 6: Final answer
x = 107,545,412.83
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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.