Finding the Fourth Proportional to 129,402,412.30, 194,103,618.45 and 61,377,964.30
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Solution
The fourth proportional to 129,402,412.30, 194,103,618.45 and 61,377,964.30 is: 92,066,946.45
Step by Step Solution
- Step 1: Write the proportion equation
129,402,412.30 : 194,103,618.45 = 61,377,964.30 : x - Step 2: Convert to fraction form
129,402,412.30/194,103,618.45 = 61,377,964.30/x - Step 3: Cross multiply
129,402,412.30x = 194,103,618.45 × 61,377,964.30 - Step 4: Simplify right side
129,402,412.30x = 11,913,684,963,724,920 - Step 5: Solve for x
x = 11,913,684,963,724,920/129,402,412.30 - Step 6: Final answer
x = 92,066,946.45
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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.