Finding the Fourth Proportional to 142,949,470.05, 213,883,107.26 and 84,688,426.71
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Solution
The fourth proportional to 142,949,470.05, 213,883,107.26 and 84,688,426.71 is: 126,712,074.18
Step by Step Solution
- Step 1: Write the proportion equation
142,949,470.05 : 213,883,107.26 = 84,688,426.71 : x - Step 2: Convert to fraction form
142,949,470.05/213,883,107.26 = 84,688,426.71/x - Step 3: Cross multiply
142,949,470.05x = 213,883,107.26 × 84,688,426.71 - Step 4: Simplify right side
142,949,470.05x = 18,113,423,853,272,136 - Step 5: Solve for x
x = 18,113,423,853,272,136/142,949,470.05 - Step 6: Final answer
x = 126,712,074.18
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.