Finding the Fourth Proportional to 207,221,408.60, 310,748,132.10 and 70,836,589.40
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Solution
The fourth proportional to 207,221,408.60, 310,748,132.10 and 70,836,589.40 is: 106,226,176.09
Step by Step Solution
- Step 1: Write the proportion equation
207,221,408.60 : 310,748,132.10 = 70,836,589.40 : x - Step 2: Convert to fraction form
207,221,408.60/310,748,132.10 = 70,836,589.40/x - Step 3: Cross multiply
207,221,408.60x = 310,748,132.10 × 70,836,589.40 - Step 4: Simplify right side
207,221,408.60x = 22,012,337,840,384,664 - Step 5: Solve for x
x = 22,012,337,840,384,664/207,221,408.60 - Step 6: Final answer
x = 106,226,176.09
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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.