Finding the Fourth Proportional to 186,787,430.60, 279,803,232.30 and 129,344,563.40
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Solution
The fourth proportional to 186,787,430.60, 279,803,232.30 and 129,344,563.40 is: 193,755,151.53
Step by Step Solution
- Step 1: Write the proportion equation
186,787,430.60 : 279,803,232.30 = 129,344,563.40 : x - Step 2: Convert to fraction form
186,787,430.60/279,803,232.30 = 129,344,563.40/x - Step 3: Cross multiply
186,787,430.60x = 279,803,232.30 × 129,344,563.40 - Step 4: Simplify right side
186,787,430.60x = 36,191,026,919,752,280 - Step 5: Solve for x
x = 36,191,026,919,752,280/186,787,430.60 - Step 6: Final answer
x = 193,755,151.53
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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.